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                                                                    EXHIBIT 4.27

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                FORM OF PREFERRED SECURITIES GUARANTEE AGREEMENT

                                 RADIO ONE, INC.


                         Dated as of _______ ___, _____


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                                TABLE OF CONTENTS

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ARTICLE I
  DEFINITIONS AND INTERPRETATION .........................................................................      1
  SECTION 1.1  Definitions and Interpretation ............................................................      1

ARTICLE II
  TRUST INDENTURE ACT ....................................................................................      4
  SECTION 2.1  Trust Indenture Act; Application ..........................................................      4
  SECTION 2.2  Lists of Holders of Securities ............................................................      4
  SECTION 2.3  Reports by the Preferred Securities Guarantee Trustee .....................................      4
  SECTION 2.4  Periodic Reports to Preferred Securities Guarantee Trustee ................................      4
  SECTION 2.5  Evidence of Compliance with Conditions Precedent ..........................................      5
  SECTION 2.6  Event of Default; Notice ..................................................................      5
  SECTION 2.7  Event of Default; Notice ..................................................................      5
  SECTION 2.8  Conflicting Interests .....................................................................      5

ARTICLE III
  POWERS, DUTIES AND RIGHTS OFPREFERRED SECURITIES GUARANTEE TRUSTEE .....................................      5
  SECTION 3.1  Powers and Duties of the Preferred Securities Guarantee Trustee ...........................      5
  SECTION 3.2  Certain Rights of Preferred Securities Guarantee Trustee ..................................      7
  SECTION 3.3  Not Responsible for Recitals or Issuance of Preferred Securities Guarantee ................      8

ARTICLE IV
  PREFERRED SECURITIES GUARANTEE TRUSTEE .................................................................      8
  SECTION 4.1  Preferred Securities Guarantee Trustee; Eligibility .......................................      8
  SECTION 4.2  Appointment, Removal and Resignation of Preferred Securities Guarantee Trustee ............      9

ARTICLE V
  GUARANTEE ..............................................................................................      9
  SECTION 5.1  Guarantee .................................................................................      9
  SECTION 5.2  Waiver of Notice and Demand ...............................................................     10
  SECTION 5.3  Obligations Not Affected ..................................................................     10
  SECTION 5.4  Rights of Holders .........................................................................     10
  SECTION 5.5  Guarantee of Payment ......................................................................     11
  SECTION 5.6  Subrogation ...............................................................................     11
  SECTION 5.7  Independent Obligations ...................................................................     11

ARTICLE VI
  LIMITATION OF TRANSACTIONS; SUBORDINATION ..............................................................     11
  SECTION 6.1  Limitation of Transactions ................................................................     11
  SECTION 6.2  Ranking ...................................................................................     12

ARTICLE VII
  TERMINATION ............................................................................................     12
  SECTION 7.1  Termination ...............................................................................     12

ARTICLE VIII
  EXCULPATION, INDEMNIFICATION AND COMPENSATION ..........................................................     12
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  SECTION 8.1   Exculpation .........................................................   12
  SECTION 8.2   Indemnification .....................................................   12
  SECTION 8.3   Compensation ........................................................   13

ARTICLE IX
  MISCELLANEOUS .....................................................................   13
  SECTION 9.1   Successors and Assigns ..............................................   13
  SECTION 9.2   Amendments ..........................................................   13
  SECTION 9.3   Notices .............................................................   13
  SECTION 9.4   Benefit .............................................................   14
  SECTION 9.5   Governing Law .......................................................   14
  SECTION 9.6   Counterparts ........................................................   14
</TABLE>

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                    PREFERRED SECURITIES GUARANTEE AGREEMENT

     THIS PREFERRED SECURITIES GUARANTEE AGREEMENT (the "Preferred Securities
Guarantee"), dated as of ________ ___, ____, is executed and delivered by Radio
One, Inc., a Delaware corporation (the "Guarantor"), and Wilmington Trust
Company, a Delaware banking corporation, as trustee (the "Preferred Securities
Guarantee Trustee"), for the benefit of the Holders (as defined herein) from
time to time of the Preferred Securities (as defined herein) of Radio One Trust
[___], a statutory business trust formed under the laws of the State of Delaware
(the "Issuer").

     WHEREAS, pursuant to an Amended and Restated Trust Agreement (the
"Agreement"), dated as of ________ ___, ____, among the trustees of the Issuer,
the Guarantor, as sponsor, and the holders from time to time of undivided
beneficial interests in the assets of the Issuer, the Issuer is authorized to
issue up to _____________ preferred securities, having an aggregate Liquidation
Amount of $ _____________, such preferred securities being designated the ____%
_______________ Preferred Securities (collectively, the "Preferred Securities").

     WHEREAS, as an incentive for the Holders to purchase the Preferred
Securities, the Guarantor desires irrevocably and unconditionally to agree, to
the extent set forth in this Preferred Securities Guarantee, to pay to the
Holders of the Preferred Securities the Guarantee Payments (as defined herein)
and to make certain other payments on the terms and conditions set forth herein.

     WHEREAS, the Guarantor is also executing and delivering a guarantee
agreement (the "Common Securities Guarantee") with substantially identical terms
to this Preferred Securities Guarantee, for the benefit of the holders of the
Common Securities (as defined herein), except that if an event of default under
the Agreement has occurred and is continuing, the rights of holders of the
Common Securities to receive Guarantee Payments under the Common Securities
Guarantee are subordinated, to the extent and in the manner set forth in the
Common Securities Guarantee, to the rights of holders of Preferred Securities to
receive Guarantee Payments under this Preferred Securities Guarantee.

     NOW, THEREFORE, in consideration of the purchase by each Holder of
Preferred Securities, which purchase the Guarantor hereby acknowledges shall
benefit the Guarantor, the Guarantor executes and delivers this Preferred
Securities Guarantee for the benefit of the Holders.

                                    ARTICLE I
                         DEFINITIONS AND INTERPRETATION

     SECTION 1.1 Definitions and Interpretation

     In this Preferred Securities Guarantee, unless the context otherwise
requires:

          (a)  capitalized terms used in this Preferred Securities Guarantee but
     not defined in the preamble above have the respective meanings assigned to
     them in this Section 1.1;

          (b)  terms defined in the Agreement as at the date of execution of
     this Preferred Securities Guarantee have the same meaning when used in this
     Preferred Securities Guarantee unless otherwise defined in this Preferred
     Securities Guarantee;

          (c)  a term defined anywhere in this Preferred Securities Guarantee
     has the same meaning throughout;

          (d)  all references to "the Preferred Securities Guarantee" or "this
Preferred Securities Guarantee" are to this Preferred Securities Guarantee as
modified, supplemented or amended from time to time;

          (e)  all references in this Preferred Securities Guarantee to Articles
and Sections are to Articles and Sections of this Preferred Securities
Guarantee, unless otherwise specified;

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          (f)  a term defined in the Trust Indenture Act has the same meaning
     when used in this Preferred Securities Guarantee, unless otherwise defined
     in this Preferred Securities Guarantee or unless the context otherwise
     requires; and

          (g)  a reference to the singular includes the plural and vice versa.

     "Affiliate" has the same meaning as given to that term in Rule 405 under
the Securities Act of 1933, as amended, or any successor rule thereunder.

     "Business Day" means any day other than a Saturday or a Sunday, or a day on
which banking institutions or trust companies in The City of New York or
Wilmington, Delaware are authorized or required by law, regulation or executive
order to close.

     "Common Securities" means the securities representing common undivided
beneficial interests in the assets of the Issuer.

     "Corporate Trust Office" means the office of the Preferred Securities
Guarantee Trustee for the conduct of corporate trust business, at which matters
related to this Preferred Securities Guarantee Trustee shall, at any particular
time, be principally administered, which office at the date of execution of this
Agreement is located at Rodney Square North, 1100 North Market Street,
Wilmington, DE 19890-0001, Attention: Corporate Trust Administration.

     "Covered Person" means any Holder or beneficial owner of Preferred
Securities.

     "Debentures" means the series of junior subordinated debt securities of the
Guarantor designated the ____% Junior Subordinated Deferrable Interest
Debentures due _____, held by the Property Trustee (as defined in the Agreement)
of the Issuer.

     "Event of Default" means a default by the Guarantor in respect of any of
its payment or other obligations under this Preferred Securities Guarantee.

     "Guarantee Payments" means the following payments or distributions, without
duplication, with respect to the Preferred Securities, to the extent not paid or
made by the Issuer: (i) any accumulated and unpaid Distributions (as defined in
the Agreement) that are required to be paid on such Preferred Securities, to the
extent the Issuer has funds legally available therefor at such time; (ii) the
redemption price, including all accumulated and unpaid Distributions to the date
of redemption (the "Redemption Price"), to the extent the Issuer has funds
legally available therefor at such time, with respect to any Preferred
Securities called for redemption by the Issuer; and (iii) upon a voluntary or
involuntary dissolution and liquidation of the Issuer (other than in connection
with the distribution of the Debentures to holders of the Preferred Securities
or the redemption of the Preferred Securities as provided in the Agreement), the
lesser of (a) the aggregate of the Liquidation Amount and all accumulated and
unpaid Distributions on the Preferred Securities to the date of payment, to the
extent the Issuer has funds legally available therefor at such time, and (b) the
amount of assets of the Issuer remaining available for distribution to Holders
in liquidation of the Issuer (in either case, the "Liquidation Distribution").
If an Event of Default has occurred and is continuing, no Guarantee Payments
under the Common Securities Guarantee with respect to the Common Securities or
any guarantee payment under any Other Common Securities Guarantees shall be made
until the Holders of Preferred Securities shall be paid in full the Guarantee
Payments to which they are entitled under this Preferred Securities Guarantee.

     "Holder" shall mean any holder, as registered on the books and records of
the Issuer, of any Preferred Securities; provided, however, that, in determining
whether the holders of the requisite percentage of Preferred Securities have
given any request, notice, consent or waiver hereunder, "Holder" shall not
include the Guarantor or any Affiliate of the Guarantor.

     "Indemnified Person" means the Preferred Securities Guarantee Trustee, any
Affiliate of the Preferred Securities Guarantee Trustee, or any officers,
directors, shareholders, members, partners, employees, representatives,
nominees, custodians or agents of the Preferred Securities Guarantee Trustee.

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     "Indenture" means the Junior Subordinated Debentures Indenture, dated as of
________ ___, ____, between Radio One, Inc., as issuer (the "Debenture Issuer"),
and Wilmington Trust Company, as trustee, pursuant to which the Debentures are
to be issued to the Property Trustee of the Issuer.

     "Liquidation Amount" means $[______] per Preferred Security.

     "List of Holders" has the meaning set forth in Section 2.2.

     "Majority in Liquidation Amount of the Preferred Securities" means, except
as provided by the Trust Indenture Act, a vote by Holder(s) of Preferred
Securities, voting separately as a class, of more than 50% of the aggregate
Liquidation Amount (including the amount payable on redemption, liquidation or
otherwise, plus accumulated and unpaid Distributions to the date upon which the
voting percentages are determined) of all Preferred Securities.

     "Officer's Certificate" means, with respect to any Person, a certificate
signed by the Chief Executive Officer, the President, a Vice President, the
Treasurer, an Assistant Treasurer, the Secretary or an Assistant Secretary. Any
Officer's Certificate delivered with respect to compliance with a condition or
covenant provided for in this Preferred Securities Guarantee shall include:

          (a) a statement that the officer signing the Officer's Certificate has
     read the covenant or condition and the definitions relating thereto;

          (b) a brief statement of the nature and scope of the examination or
     investigation undertaken by such officer in rendering the Officer's
     Certificate;

          (c) a statement that such officer has made such examination or
     investigation as, in such officer's opinion, is necessary to enable such
     officer to express an informed opinion as to whether or not such covenant
     or condition has been complied with; and

          (d) a statement as to whether, in the opinion of such officer, such
     condition or covenant has been complied with.

     "Other Common Securities Guarantees" shall have the same meaning as "Other
Guarantees" in the Common Securities Guarantee.

     "Other Debentures" means all junior subordinated debentures issued by the
Guarantor from time to time and sold to trusts established by the Guarantor, in
each case similar to the Issuer.

     "Other Guarantees" means all guarantees issued by the Guarantor with
respect to preferred securities similar to the Preferred Securities issued by
other trusts established by the Guarantor, in each case similar to the Issuer.

     "Person" means a legal person, including any individual, corporation,
estate, partnership, joint venture, association, joint stock company, limited
liability company, trust, unincorporated association, or government or any
agency or political subdivision thereof, or any other entity of whatever nature.

     "Preferred Securities Guarantee Trustee" means the Wilmington Trust
Company, a Delaware banking corporation, until a Successor Preferred Securities
Guarantee Trustee has been appointed and has accepted such appointment pursuant
to the terms of this Preferred Securities Guarantee and thereafter means each
such Successor Preferred Securities Guarantee Trustee.

     "Responsible Officer" means, with respect to the Preferred Securities
Guarantee Trustee, any officer within the Corporate Trust Office of the
Preferred Securities Guarantee Trustee, including any vice-president, any
assistant vice-president, any assistant secretary, any assistant treasurer or
other officer of the Corporate Trust Office of the Preferred Securities
Guarantee Trustee customarily performing functions similar to those performed by
any of the above-designated officers and also means, with respect to a
particular corporate trust matter, any other officer of the Preferred

                                        3

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Securities Guarantee Trustee to whom such matter is referred because of that
officer's knowledge of and familiarity with the particular subject.

     "Successor Preferred Securities Guarantee Trustee" means a successor
Preferred Securities Guarantee Trustee possessing the qualifications to act as
Preferred Securities Guarantee Trustee under Section 4.1.

     "Trust Indenture Act" means the Trust Indenture Act of 1939, as amended.

     "Trust Securities" means, collectively, the Common Securities and the
Preferred Securities.

                                   ARTICLE II
                               TRUST INDENTURE ACT

     SECTION 2.1  Trust Indenture Act; Application

          (a) This Preferred Securities Guarantee is subject to the provisions
of the Trust Indenture Act that are required to be part of this Preferred
Securities Guarantee and shall, to the extent applicable, be governed by such
provisions.

          (b) If and to the extent that any provision of this Preferred
Securities Guarantee limits, qualifies or conflicts with the duties imposed by
Sections 310 to 317, inclusive, of the Trust Indenture Act, such imposed duties
shall control.

     SECTION 2.2  Lists of Holders of Securities

          (a) The Guarantor shall provide the Preferred Securities Guarantee
Trustee (unless the Preferred Securities Guarantee Trustee is otherwise the
registrar of the Preferred Securities) with a list, in such form as the
Preferred Securities Guarantee Trustee may reasonably require, of the names and
addresses of the Holders of the Preferred Securities ("List of Holders"), (i)
within 14 days after each record date for payment of Distributions, as of such
record date and (ii) at any other time within 30 days of receipt by the
Guarantor of a written request for a List of Holders as of a date no more than
14 days before such List of Holders is given to the Preferred Securities
Guarantee Trustee, provided that the Guarantor shall not be obligated to provide
such List of Holders at any time the List of Holders does not differ from the
most recent List of Holders given to the Preferred Securities Guarantee Trustee
by the Guarantor. The Preferred Securities Guarantee Trustee may destroy any
List of Holders previously given to it on receipt of a new List of Holders.

          (b) The Preferred Securities Guarantee Trustee shall comply with its
obligations under Sections 311(a), 311(b) and Section 312(b) of the Trust
Indenture Act.

     SECTION 2.3  Reports by the Preferred Securities Guarantee Trustee

     Within 60 days after September 1 of each year, commencing September 1,
____, the Preferred Securities Guarantee Trustee shall provide to the Holders of
the Preferred Securities such reports as are required by Section 313 of the
Trust Indenture Act, if any, in the form and in the manner provided by Section
313 of the Trust Indenture Act. The Preferred Securities Guarantee Trustee shall
also comply with the requirements of Section 313(d) of the Trust Indenture Act.

     SECTION 2.4  Periodic Reports to Preferred Securities Guarantee Trustee

     The Guarantor shall provide to the Preferred Securities Guarantee Trustee
such documents, reports and information as required by Section 314 of the Trust
Indenture Act (if any) and the compliance certificate required by Section 314 of
the Trust Indenture Act in the form, in the manner and at the times required by
Section 314 of the Trust Indenture Act. Delivery of such reports, information
and documents to the Preferred Securities Guarantee Trustee is for informational
purposes only and the Preferred Securities Guarantee Trustee's receipt of such
shall not constitute constructive notice of any information contained therein or
determinable from information contained therein, including the Guarantor's
compliance with any of its covenants hereunder (as to which the Preferred
Securities Guarantee Trustee is entitled to rely exclusively on Officer's
Certificates).

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     SECTION 2.5  Evidence of Compliance with Conditions Precedent

     The Guarantor shall provide to the Preferred Securities Guarantee Trustee
such evidence of compliance with any conditions precedent, if any, provided for
in this Preferred Securities Guarantee that relate to any of the matters set
forth in Section 314(c) of the Trust Indenture Act. Any certificate or opinion
required to be given by an officer pursuant to Section 314(c)(1) may be given in
the form of an Officer's Certificate.

     SECTION 2.6  Event of Default; Notice

     The Holders of a Majority in Liquidation Amount of Preferred Securities
may, by vote, on behalf of the Holders of all of the Preferred Securities, waive
any past Event of Default and its consequences. Upon such waiver, any such Event
of Default shall cease to exist, and any Event of Default arising therefrom
shall be deemed to have been cured, for every purpose of this Preferred
Securities Guarantee, but no such waiver shall extend to any subsequent or other
default or Event of Default or impair any right consequent thereon.

     SECTION 2.7  Event of Default; Notice

          (a)  The Preferred Securities Guarantee Trustee shall, within 90 days
after the occurrence of a default with respect to this Preferred Securities
Guarantee, mail by first class postage prepaid, to all Holders of the Preferred
Securities, notices of all defaults actually known to a Responsible Officer of
the Preferred Securities Guarantee Trustee, unless such defaults have been cured
before the giving of such notice, provided, that, except in the case of default
in the payment of any Guarantee Payment, the Preferred Securities Guarantee
Trustee shall be protected in withholding such notice if and so long as the
board of directors, the executive committee, or a trust committee of directors
and/or Responsible Officers of the Preferred Securities Guarantee Trustee in
good faith determines that the withholding of such notice is in the interests of
the Holders of the Preferred Securities.

          (b)  The Preferred Securities Guarantee Trustee shall not be deemed to
have knowledge of any Event of Default unless the Preferred Securities Guarantee
Trustee shall have received written notice, or a Responsible Officer of the
Preferred Securities Guarantee Trustee shall have obtained actual knowledge, of
such Event of Default.

     SECTION 2.8  Conflicting Interests

     The Indenture shall be deemed to be specifically described in this
Preferred Securities Guarantee for the purposes of clause (i) of the first
proviso contained in Section 310(b) of the Trust Indenture Act.

                                   ARTICLE III
                          POWERS, DUTIES AND RIGHTS OF
                     PREFERRED SECURITIES GUARANTEE TRUSTEE

     SECTION 3.1  Powers and Duties of the Preferred Securities Guarantee
                  Trustee

          (a)  This Preferred Securities Guarantee shall be held by the
Preferred Securities Guarantee Trustee for the benefit of the Holders of the
Preferred Securities, and the Preferred Securities Guarantee Trustee shall not
transfer this Preferred Securities Guarantee to any Person except a Holder of
Preferred Securities exercising his or her rights pursuant to Section 5.4(b) or
to a Successor Preferred Securities Guarantee Trustee on acceptance by such
Successor Preferred Securities Guarantee Trustee of its appointment to act as
Successor Preferred Securities Guarantee Trustee. The right, title and interest
of the Preferred Securities Guarantee Trustee shall automatically vest in any
Successor Preferred Securities Guarantee Trustee, and such vesting and
succession of title shall be effective whether or not conveyancing documents
have been executed and delivered pursuant to the appointment of such Successor
Preferred Securities Guarantee Trustee.

          (b)  If an Event of Default actually known to a Responsible Officer of
the Preferred Securities Guarantee Trustee has occurred and is continuing, the
Preferred Securities Guarantee Trustee shall enforce this Preferred Securities
Guarantee for the benefit of the Holders of the Preferred Securities. In such
event, any moneys collected shall first be

                                        5

<PAGE>

paid to the Preferred Securities Guarantee Trustee for amounts due under Section
8.3 and then to the Holders of the Preferred Securities.

          (c)  The Preferred Securities Guarantee Trustee, before the occurrence
of any Event of Default and after the curing of all Events of Default that may
have occurred, shall undertake to perform only such duties as are specifically
set forth in this Preferred Securities Guarantee, and no implied covenants shall
be read into this Preferred Securities Guarantee against the Preferred
Securities Guarantee Trustee. In case an Event of Default has occurred (that has
not been cured or waived pursuant to Section 2.6) and is actually known to a
Responsible Officer of the Preferred Securities Guarantee Trustee, the Preferred
Securities Guarantee Trustee shall exercise such of the rights and powers vested
in it by this Preferred Securities Guarantee, and use the same degree of care
and skill in its exercise thereof, as a prudent person would exercise or use
under the circumstances in the conduct of his or her own affairs.

          (d)  No provision of this Preferred Securities Guarantee shall be
construed to relieve the Preferred Securities Guarantee Trustee from liability
for its own negligent action, its own negligent failure to act, its own bad
faith, or its own willful misconduct, except that:

               (i)   prior to the occurrence of any Event of Default and after
     the curing or waiving of all such Events of Default that may have occurred:

                     (A)  the duties and obligations of the Preferred Securities
          Guarantee Trustee shall be determined solely by the express provisions
          of this Preferred Securities Guarantee, and the Preferred Securities
          Guarantee Trustee shall not be liable except for the performance of
          such duties and obligations as are specifically set forth in this
          Preferred Securities Guarantee, and no implied covenants or
          obligations shall be read into this Preferred Securities Guarantee
          against the Preferred Securities Guarantee Trustee; and

                     (B)  in the absence of bad faith on the part of the
          Preferred Securities Guarantee Trustee, the Preferred Securities
          Guarantee Trustee may conclusively rely, as to the truth of the
          statements and the correctness of the opinions expressed therein, upon
          any certificates or opinions furnished to the Preferred Securities
          Guarantee Trustee and conforming to the requirements of this Preferred
          Securities Guarantee; but in the case of any such certificates or
          opinions that by any provision hereof are specifically required to be
          furnished to the Preferred Securities Guarantee Trustee, the Preferred
          Securities Guarantee Trustee shall be under a duty to examine the same
          to determine whether or not they conform to the requirements of this
          Preferred Securities Guarantee (but shall not be required to confirm
          or investigate the accuracy of mathematical calculations or other
          facts stated therein);

               (ii)  the Preferred Securities Guarantee Trustee shall not be
     liable for any error of judgment made in good faith by a Responsible
     Officer of the Preferred Securities Guarantee Trustee, unless it shall be
     proved that the Preferred Securities Guarantee Trustee was negligent in
     ascertaining the pertinent facts upon which such judgment was made;

               (iii) the Preferred Securities Guarantee Trustee shall not be
     liable with respect to any action taken or omitted to be taken by it in
     good faith in accordance with the direction of the Holders of a Majority in
     Liquidation Amount of the Preferred Securities relating to the time, method
     and place of conducting any proceeding for any remedy available to the
     Preferred Securities Guarantee Trustee, or exercising any trust or power
     conferred upon the Preferred Securities Guarantee Trustee under this
     Preferred Securities Guarantee; and

               (iv)  no provision of this Preferred Securities Guarantee shall
     require the Preferred Securities Guarantee Trustee to expend or risk its
     own funds or otherwise incur personal financial liability in the
     performance of any of its duties or in the exercise of any of its rights or
     powers, if the Preferred Securities Guarantee Trustee shall have reasonable
     grounds for believing that the repayment of such funds or liability is not
     reasonably assured to it under the terms of this Preferred Securities
     Guarantee or if indemnity reasonably satisfactory to the Preferred
     Securities Guarantee Trustee against such risk or liability is not
     reasonably assured to it.

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<PAGE>

     SECTION 3.2  Certain Rights of Preferred Securities Guarantee Trustee

         (a)   Subject to the provisions of Section 3.1:

               (i)    the Preferred Securities Guarantee Trustee may
     conclusively rely, and shall be fully protected in acting or refraining
     from acting, upon any resolution, certificate, statement, instrument,
     opinion, report, notice, request, direction, consent, order, bond,
     debenture, note, other evidence of indebtedness or other paper or document
     believed by it to be genuine and to have been signed, sent or presented by
     the proper party or parties;

               (ii)   any direction or act of the Guarantor contemplated by this
     Preferred Securities Guarantee may be sufficiently evidenced by an
     Officer's Certificate;

               (iii)  whenever, in the administration of this Preferred
     Securities Guarantee, the Preferred Securities Guarantee Trustee shall deem
     it desirable that a matter be proved or established before taking,
     suffering or omitting any action hereunder, the Preferred Securities
     Guarantee Trustee (unless other evidence is herein specifically prescribed)
     may, in the absence of negligence or bad faith on its part, request and
     conclusively rely upon an Officer's Certificate which, upon receipt of such
     request, shall be promptly delivered by the Guarantor;

               (iv)   the Preferred Securities Guarantee Trustee shall have no
     duty to see to any recording, filing or registration of any instrument
     (including any financing or any continuation statement or any filing under
     tax or securities laws) or any re-recording, refiling or registration
     thereof;

               (v)    the Preferred Securities Guarantee Trustee may consult
     with counsel of its selection, and the advice or written opinion of such
     counsel with respect to legal matters or advice within the scope of such
     expert's area of expertise shall be full and complete authorization and
     protection in respect of any action taken, suffered or omitted by it
     hereunder in good faith and in accordance with such advice or opinion. Such
     counsel may be counsel to the Guarantor or any of its Affiliates and may
     include any of its employees. The Preferred Securities Guarantee Trustee
     shall have the right at any time to seek instructions concerning the
     administration of this Preferred Securities Guarantee from any court of
     competent jurisdiction;

               (vi)   the Preferred Securities Guarantee Trustee shall be under
     no obligation to exercise any of the rights or powers vested in it by this
     Preferred Securities Guarantee at the request or direction of any Holder,
     unless such Holder shall have provided to the Preferred Securities
     Guarantee Trustee such security and indemnity, reasonably satisfactory to
     the Preferred Securities Guarantee Trustee, against the reasonable costs,
     expenses (including reasonable attorneys' fees and expenses and the
     reasonable expenses of the Preferred Securities Guarantee Trustee's agents,
     nominees or custodians) and liabilities that might be incurred by it in
     complying with such request or direction, including such reasonable
     advances as may be requested by the Preferred Securities Guarantee Trustee;
     provided that, nothing contained in this Section 3.2(a)(vi) shall be taken
     to relieve the Preferred Securities Guarantee Trustee, upon the occurrence
     of an Event of Default, of its obligation to exercise the rights and powers
     vested in it by the terms of this Preferred Securities Guarantee;

               (vii)  the Preferred Securities Guarantee Trustee shall not be
     bound to make any investigation into the facts or matters stated in any
     resolution, certificate, statement, instrument, opinion, report, notice,
     request, direction, consent, order, bond, debenture, note, other evidence
     of indebtedness or other paper or document, but the Preferred Securities
     Guarantee Trustee, in its discretion, may make such further inquiry or
     investigation into such facts or matters as it may see fit;

               (viii) the Preferred Securities Guarantee Trustee may execute any
     of the trusts or powers hereunder or perform any duties hereunder either
     directly or by or through agents, nominees, custodians or attorneys, and
     the Preferred Securities Guarantee Trustee shall not be responsible for any
     misconduct or negligence on the part of any agent or attorney appointed
     with due care by it hereunder;

               (ix)   any action taken by the Preferred Securities Guarantee
     Trustee or its agents hereunder shall bind the Holders of the Preferred
     Securities, and the signature of the Preferred Securities Guarantee Trustee
     or its agents

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<PAGE>

     alone shall be sufficient and effective to perform any such action. No
     third party shall be required to inquire as to the authority of the
     Preferred Securities Guarantee Trustee to so act or as to its compliance
     with any of the terms and provisions of this Preferred Securities
     Guarantee, both of which shall be conclusively evidenced by the Preferred
     Securities Guarantee Trustee's or its agent's taking such action;

               (x)   whenever in the administration of this Preferred Securities
          Guarantee the Preferred Securities Guarantee Trustee shall deem it
          desirable to receive instructions with respect to enforcing any remedy
          or right or taking any other action hereunder, the Preferred
          Securities Guarantee Trustee (A) may request instructions from the
          Holders of a Majority in Liquidation Amount of the Preferred
          Securities, (B) may refrain from enforcing such remedy or right or
          taking such other action until such instructions are received, and (C)
          shall be protected in conclusively relying on or acting in accordance
          with such instructions;

               (xi)  except as otherwise expressly provided by this Preferred
     Securities Guarantee, the Preferred Securities Guarantee Trustee shall not
     be under any obligation to take any action that is discretionary under the
     provisions of this Preferred Securities Agreement; and

               (xii) the Preferred Securities Guarantee Trustee shall not be
     liable for any action taken, suffered, or omitted to be taken by it in good
     faith, without negligence, and reasonably believed by it to be authorized
     or within the discretion or rights or powers conferred upon it by this
     Preferred Securities Guarantee.

               (b)   No provision of this Preferred Securities Guarantee shall
be deemed to impose any duty or obligation on the Preferred Securities Guarantee
Trustee to perform any act or acts or exercise any right, power, duty or
obligation conferred or imposed on it in any jurisdiction in which it shall be
illegal, or in which the Preferred Securities Guarantee Trustee shall be
unqualified or incompetent in accordance with applicable law, to perform any
such act or acts or to exercise any such right, power, duty or obligation. No
permissive power or authority available to the Preferred Securities Guarantee
Trustee shall be construed to be a duty.

     SECTION 3.3   Not Responsible for Recitals or Issuance of Preferred
                   Securities Guarantee

     The recitals contained in this Preferred Securities Guarantee shall be
taken as the statements of the Guarantor, and the Preferred Securities Guarantee
Trustee does not assume any responsibility for their correctness. The Preferred
Securities Guarantee Trustee makes no representation as to the validity or
sufficiency of this Preferred Securities Guarantee.

                                   ARTICLE IV
                     PREFERRED SECURITIES GUARANTEE TRUSTEE

     SECTION 4.1   Preferred Securities Guarantee Trustee; Eligibility

               (a)   There shall at all times be a Preferred Securities
Guarantee Trustee which shall:

                     (i)  not be an Affiliate of the Guarantor; and

                     (ii) be a corporation organized and doing business under
     the laws of the United States of America or any State or Territory thereof
     or of the District of Columbia, or a corporation or Person permitted by the
     Securities and Exchange Commission to act as an institutional trustee under
     the Trust Indenture Act, authorized under such laws to exercise corporate
     trust powers, having a combined capital and surplus of at least 50 million
     U.S. dollars ($50,000,000), and subject to supervision or examination by
     Federal, State, Territorial or District of Columbia authority. If such
     corporation publishes reports of condition at least annually, pursuant to
     law or to the requirements of the supervising or examining authority
     referred to above, then, for the purposes of this Section 4.1(a)(ii), the
     combined capital and surplus of such corporation shall be deemed to be its
     combined capital and surplus as set forth in its most recent report of
     condition so published.

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          (b) If at any time the Preferred Securities Guarantee Trustee shall
cease to be eligible to so act under Section 4.1(a), the Preferred Securities
Guarantee Trustee shall immediately resign in the manner and with the effect set
out in Section 310(b) of the Trust Indenture Act.

          (c) If the Preferred Securities Guarantee Trustee has or shall acquire
any "conflicting interest" within the meaning of Section 310(b) of the Trust
Indenture Act, the Preferred Securities Guarantee Trustee and Guarantor shall in
all respects comply with the provisions of Section 310(b) of the Trust Indenture
Act.

     SECTION 4.2   Appointment, Removal and Resignation of Preferred Securities
                   Guarantee Trustee

          (a) Subject to Section 4.2(b), the Preferred Securities Guarantee
Trustee may be appointed or removed without cause at any time by the Guarantor
except during the occurrence and continuance of an Event of Default.

          (b) The Preferred Securities Guarantee Trustee shall not be removed in
accordance with Section 4.2(a) until a Successor Preferred Securities Guarantee
Trustee has been appointed and has accepted such appointment by written
instrument executed by such Successor Preferred Securities Guarantee Trustee and
delivered to the Guarantor.

          (c) The Preferred Securities Guarantee Trustee shall hold office until
a Successor Preferred Securities Guarantee Trustee shall have been appointed or
until its removal or resignation. The Preferred Securities Guarantee Trustee may
resign from office (without need for prior or subsequent accounting) by an
instrument in writing executed by the Preferred Securities Guarantee Trustee and
delivered to the Guarantor, which resignation shall not take effect until a
Successor Preferred Securities Guarantee Trustee has been appointed and has
accepted such appointment by instrument in writing executed by such Successor
Preferred Securities Guarantee Trustee and delivered to the Guarantor and the
resigning Preferred Securities Guarantee Trustee.

          (d) If no Successor Preferred Securities Guarantee Trustee shall have
been appointed and accepted appointment as provided in this Section 4.2 within
60 days after delivery of an instrument of removal or resignation, the Preferred
Securities Guarantee Trustee resigning or being removed may petition any court
of competent jurisdiction for appointment of a Successor Preferred Securities
Guarantee Trustee. Such court may thereupon, after prescribing such notice, if
any, as it may deem proper, appoint a Successor Preferred Securities Guarantee
Trustee.

          (e) No Preferred Securities Guarantee Trustee shall be liable for the
acts or omissions to act of any Successor Preferred Securities Guarantee
Trustee.

          (f) Upon termination of this Preferred Securities Guarantee or removal
or resignation of the Preferred Securities Guarantee Trustee pursuant to this
Section 4.2, the Guarantor shall pay to the Preferred Securities Guarantee
Trustee all amounts due to the Preferred Securities Guarantee Trustee accrued to
the date of such termination, removal or resignation.

                                    ARTICLE V
                                    GUARANTEE

     SECTION 5.1  Guarantee

     The Guarantor irrevocably and unconditionally agrees to pay in full, on a
subordinated basis, to the Holders the Guarantee Payments (without duplication
of amounts theretofore paid by the Issuer), as and when due, regardless of any
defense, right of set-off or counterclaim that the Issuer may have or assert
(other than the defense of payment). The Guarantor's obligation to make a
Guarantee Payment may be satisfied by direct payment of the required amounts by
the Guarantor to the Holders or by causing the Issuer to pay such amounts to the
Holders. The Guarantor will honor all obligations, if any, relating to the
conversion of the Preferred Securities into securities of the Guarantor as set
forth in the Agreement and the Indenture.

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<PAGE>

     SECTION 5.2  Waiver of Notice and Demand

     The Guarantor hereby waives notice of acceptance of this Preferred
Securities Guarantee and of any liability to which it applies or may apply,
presentment, demand for payment, any right to require a proceeding first against
the Issuer or any other Person before proceeding against the Guarantor, protest,
notice of nonpayment, notice of dishonor, notice of redemption and all other
notices and demands.

     SECTION 5.3  Obligations Not Affected

     The obligations, covenants, agreements and duties of the Guarantor under
this Preferred Securities Guarantee shall in no way be affected or impaired by
reason of the happening from time to time of any of the following:

          (a)  the release or waiver, by operation of law or otherwise, of the
     performance or observance by the Issuer of any express or implied
     agreement, covenant, term or condition relating to the Preferred Securities
     to be performed or observed by the Issuer;

          (b)  the extension of time for the payment by the Issuer of all or any
     portion of the distributions, redemption price, liquidation distribution or
     any other sums payable under the terms of the Preferred Securities or the
     extension of time for the performance of any other obligation under,
     arising out of, or in connection with, the Preferred Securities (other than
     an extension of time for payment of Distributions, Redemption Price,
     Liquidation Distribution or other sum payable that results from the
     extension of any interest payment period on the Debentures permitted by the
     Indenture);

          (c)  any failure, omission, delay or lack of diligence on the part of
     the Holders to enforce, assert or exercise any right, privilege, power or
     remedy conferred on the Holders pursuant to the terms of the Preferred
     Securities, or any action on the part of the Issuer granting indulgence or
     extension of any kind;

          (d)  the voluntary or involuntary liquidation, dissolution, sale of
     any collateral, receivership, insolvency, bankruptcy, assignment for the
     benefit of creditors, reorganization, arrangement, composition or
     readjustment of debt of, or other similar proceedings affecting, the Issuer
     or any of the assets of the Issuer;

          (e)  any invalidity of, or defect or deficiency in, the Preferred
     Securities;

          (f)  the settlement or compromise of any obligation guaranteed hereby
     or hereby incurred; or

          (g)  any other circumstance whatsoever that might otherwise constitute
     a legal or equitable discharge or defense of a guarantor;

it being the intent of this Section 5.3 that the obligations of the Guarantor
with respect to the Guarantee Payments shall be absolute and unconditional under
any and all circumstances.

     There shall be no obligation of the Holders to give notice to, or obtain
consent of, the Guarantor with respect to the happening of any of the foregoing.

     SECTION 5.4  Rights of Holders

          (a)  The Holders of a Majority in Liquidation Amount of the Preferred
Securities have the right to direct the time, method and place of conducting any
proceeding for any remedy available to the Preferred Securities Guarantee
Trustee in respect of this Preferred Securities Guarantee or exercising any
trust or power conferred upon the Preferred Securities Guarantee Trustee under
this Preferred Securities Guarantee.

          (b)  If the Preferred Securities Guarantee Trustee fails to enforce
this Preferred Securities Guarantee, any Holder of Preferred Securities may
institute a legal proceeding directly against the Guarantor to enforce the
rights of such Holder under this Preferred Securities Guarantee, without first
instituting a legal proceeding against the Issuer,

                                       10

<PAGE>

the Preferred Securities Guarantee Trustee or any other person or entity. The
Guarantor waives any right or remedy to require that any action be brought first
against the Issuer or any other person or entity before proceeding directly
against the Guarantor.

     Notwithstanding the foregoing, if the Guarantor has failed to make a
required Guarantee Payment, a Holder of Preferred Securities may directly
institute a proceeding against the Guarantor for enforcement of this Preferred
Securities Guarantee for such Guarantee Payment.

     SECTION 5.5  Guarantee of Payment

     This Preferred Securities Guarantee creates a guarantee of payment and not
of collection.

     SECTION 5.6  Subrogation

     The Guarantor shall be subrogated to all (if any) rights of the Holders of
Preferred Securities against the Issuer in respect of any amounts paid to such
Holders by the Guarantor under this Preferred Securities Guarantee; provided,
however, that the Guarantor shall not (except to the extent required by
mandatory provisions of law) be entitled to enforce or exercise any right that
it may acquire by way of subrogation or any indemnity, reimbursement or other
agreement, in all cases as a result of payment under this Preferred Securities
Guarantee, if, at the time of any such payment, any amounts are due and unpaid
under this Preferred Securities Guarantee. If any amount shall be paid to the
Guarantor in violation of the preceding sentence, the Guarantor agrees to hold
such amount in trust for the Holders and to pay over such amount to the Holders.

     SECTION 5.7  Independent Obligations

     The Guarantor acknowledges that its obligations hereunder are independent
of the obligations of the Issuer with respect to the Preferred Securities, and
that the Guarantor shall be liable as principal and as debtor hereunder to make
Guarantee Payments pursuant to the terms of this Preferred Securities Guarantee
notwithstanding the occurrence of any event referred to in subsections (a)
through (g), inclusive, of Section 5.3 hereof.

                                   ARTICLE VI
                    LIMITATION OF TRANSACTIONS; SUBORDINATION

     SECTION 6.1  Limitation of Transactions

     So long as any Preferred Securities remain outstanding, the Guarantor shall
not (i) declare or pay any dividends or distributions on, or redeem, purchase,
acquire, or make a liquidation payment with respect to, any of the Guarantor's
capital stock (which includes common and preferred stock) or (ii) make any
payment of principal, interest or premium, if any, on or repay or repurchase or
redeem any debt securities of the Guarantor (including any Other Debentures)
that rank pari passu with or junior in right of payment to the Debentures or
(iii) make any guarantee payments with respect to any guarantee by the Guarantor
of the debt securities of any subsidiary of the Guarantor (including Other
Guarantees) if such guarantee ranks pari passu or junior in right of payment to
the Debentures (other than (a) dividends or distributions in shares of, or
options, warrants or rights to subscribe for or purchase shares of, common stock
of the Guarantor, (b) any declaration of a dividend in connection with the
implementation of a stockholders' rights plan, or the issuance of stock under
any such plan in the future, or the redemption or repurchase of any such rights
pursuant thereto, (c) payments under the Preferred Securities Guarantee, (d) as
a result of a reclassification of the Guarantor's capital stock or the exchange
or the conversion of one class or series of the Guarantor's capital stock for
another class or series of the Guarantor's capital stock, (e) the purchase of
fractional interests in shares of the Guarantor's capital stock pursuant to the
conversion or exchange provisions of such capital stock or the security being
converted or exchanged, and (f) purchases of common stock related to the
issuance of common stock or rights under any of the Guarantor's benefit plans
for its directors, officers or employees or any of the Guarantor's dividend
reinvestment plans) if at such time (i) there shall have occurred any event of
which the Guarantor has actual knowledge that is, or with the giving of notice
or the lapse of time, or both, would be an Event of Default, (ii) the Guarantor
shall be in default with respect to its payment obligations under this Preferred
Securities Guarantee or (iii) the Guarantor shall have given notice

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<PAGE>

of its election of the exercise of its right to extend the interest payment
period pursuant to Section 4.01(b) of the Indenture and shall not have rescinded
such notice, and any such extension shall have commenced and be continuing.

     SECTION 6.2  Ranking

     This Preferred Securities Guarantee will constitute an unsecured obligation
of the Guarantor and will rank (i) subordinate and junior in right of payment to
all other liabilities of the Guarantor except any liabilities (including the
Other Guarantees, the Common Securities Guarantee and the Other Common
Securities Guarantees) that may be pari passu or junior expressly by their
terms, and (ii) senior to the Guarantor's capital stock now or hereafter issued
by the Guarantor, if any, and with any guarantee now or hereafter entered into
by the Guarantor in respect of any of the Guarantor's capital stock. The
foregoing subordination shall not apply to amounts payable under Article VIII.

                                   ARTICLE VII
                                   TERMINATION

     SECTION 7.1  Termination

     This Preferred Securities Guarantee shall terminate and be of no further
force and effect upon (i) full payment of the Redemption Price of all Preferred
Securities, or (ii) liquidation of the Issuer, the full payment of the amounts
payable in accordance with the Agreement or the distribution of the Debentures
to the Holders of all of the Preferred Securities. Notwithstanding the
foregoing, this Preferred Securities Guarantee will continue to be effective or
will be reinstated, as the case may be, if at any time any Holder of Preferred
Securities must restore payment of any sums paid under the Preferred Securities
or under this Preferred Securities Guarantee.

                                  ARTICLE VIII
                  EXCULPATION, INDEMNIFICATION AND COMPENSATION

     SECTION 8.1  Exculpation

          (a)  No Indemnified Person shall be liable, responsible or accountable
in damages or otherwise to the Guarantor or any Covered Person for any loss,
damage, liability, expense or claim incurred by reason of any act or omission
performed or omitted by such Indemnified Person in good faith in accordance with
this Preferred Securities Guarantee and in a manner that such Indemnified Person
reasonably believed to be within the scope of the authority conferred on such
Indemnified Person by this Preferred Securities Guarantee or by law, except that
this provision shall not be deemed to modify Section 3.1(d).

          (b)  An Indemnified Person shall be fully protected in relying in good
faith upon the records of the Guarantor and upon such information, opinions,
reports or statements presented to the Guarantor by any Person as to matters the
Indemnified Person reasonably believes are within such other Person's
professional or expert competence and who has been selected with reasonable care
by or on behalf of the Guarantor, including information, opinions, reports or
statements as to the value and amount of the assets, liabilities, profits,
losses, or any other facts pertinent to the existence and amount of assets from
which Distributions to Holders of Preferred Securities might properly be paid.

     SECTION 8.2  Indemnification

     The Guarantor agrees to indemnify each Indemnified Person for, and to hold
each Indemnified Person harmless against, any and all loss, liability, damage,
claim or expense incurred without negligence, willful misconduct or bad faith on
its part, arising out of or in connection with the acceptance or administration
of the trust or trusts hereunder, including the reasonable costs and expenses
(including reasonable legal fees and expenses) of defending itself against, or
investigating, any claim or liability in connection with the exercise or
performance of any of its powers or duties hereunder. The obligation to
indemnify as set forth in this Section 8.2 shall survive the termination of this
Preferred Securities Guarantee or the resignation or removal of the Preferred
Securities Guarantee Trustee.


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<PAGE>

     SECTION 8.3  Compensation

     The Guarantor agrees:

          (a)  to pay to the Preferred Securities Guarantee Trustee from time to
     time such compensation as shall be agreed in writing between the Company
     and the Preferred Securities Guarantee Trustee for all services rendered by
     it hereunder (which compensation shall not be limited by any provision of
     law in regard to the compensation of a trustee of an express trust); and

          (b)  to reimburse the Preferred Securities Guarantee Trustee upon its
     request for reasonable expenses, disbursements and advances incurred or
     made by the Preferred Securities Guarantee Trustee in accordance with any
     provision of this Preferred Securities Guarantee (including the reasonable
     compensation and the expenses and advances of its agents and counsel),
     except any such expense or advance as may be attributable to its
     negligence, willful misconduct or bad faith.

     The Preferred Securities Guarantee Trustee shall have a claim and lien
prior to the Preferred Securities holders as to all property and funds held by
it hereunder for any amount owing to it or any predecessor Preferred Securities
Guarantee Trustee for fees and expenses pursuant to this Article.

                                   ARTICLE IX
                                  MISCELLANEOUS

     SECTION 9.1  Successors and Assigns

     All guarantees and agreements contained in this Preferred Securities
Guarantee shall bind the successors, assigns, receivers, trustees and
representatives of the Guarantor and shall inure to the benefit of the Holders
of the Preferred Securities then outstanding.

     Except in connection with any merger or consolidation of the Guarantor with
or into another entity permitted by the Indenture or any sale, transfer or lease
of the Guarantor's assets to another entity permitted by the Indenture, the
Guarantor may not assign its rights or delegate its obligations under this
Preferred Securities Guarantee.

     SECTION 9.2  Amendments

     Except with respect to any changes that do not materially adversely affect
the rights of Holders (in which case no approval of Holders will be required),
this Preferred Securities Guarantee may only be amended with the prior approval
of the Holders of a Majority in Liquidation Amount of the outstanding Preferred
Securities (including the amount payable on redemption, liquidation or
otherwise, plus accumulated and unpaid Distributions to the date upon which the
voting percentages are determined). The provisions of Section 12.2 of the
Agreement with respect to meetings of Holders of the Securities apply to the
giving of such approval.

     SECTION 9.3  Notices

     All notices provided for in this Preferred Securities Guarantee shall be in
writing, duly signed by the party giving such notice, and shall be delivered,
telecopied or mailed by first class mail, as follows:

          (a)  if given to the Issuer, in care of the Administrative Trustee at
     the Issuer's mailing address set forth below (or such other address as the
     Issuer may give notice of to the Holders of the Common Securities):

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<PAGE>

          Radio One Trust [_]
          c/o Radio One, Inc.
          5900 Princess Garden Parkway, 7th Floor
          Lanham, MD 20706
          Attention: Linda J. Eckard Vilardo, Esq.
          Telephone: (301) 429-2646
          Telecopier: (301) 306-9638

          (b)  if given to the Preferred Securities Guarantee Trustee, at the
     Preferred Securities Guarantee Trustee's mailing address set forth below
     (or such other address as the Preferred Securities Guarantee Trustee may
     give notice of to the Holders of the Preferred Securities):

          Wilmington Trust Company
          Rodney Square North, 1100 North Market Street
          Wilmington, DE 19890-0001
          Attention: Corporate Trust Administration
          Telephone: (302) 371-636-6000
          Telecopier: (302) 371-636-4148

          (c)  if given to the Guarantor, at the Guarantor's mailing address set
     forth below (or such other address as the Guarantor may give notice of to
     the Holders of the Preferred Securities):

          Radio One, Inc.
          5900 Princess Garden Parkway, 7th Floor
          Lanham, MD 20706
          Attention: Linda J. Eckard Vilardo, Esq.
          Telephone: (301) 429-2646
          Telecopier: (301) 306-9638

          (d)  if given to any Holder of Preferred Securities, at the address
     set forth on the books and records of the Issuer.

     All such notices shall be deemed to have been given when received in
person, telecopied with receipt confirmed (with originals to follow by
first-class mail), or mailed by first class mail, postage prepaid except that if
a notice or other document is refused delivery or cannot be delivered because of
a changed address of which no notice was given, such notice or other document
shall be deemed to have been delivered on the date of such refusal or inability
to deliver.

     SECTION 9.4  Benefit

     This Preferred Securities Guarantee is solely for the benefit of the
Holders of the Preferred Securities and, subject to Section 3.1(a), is not
separately transferable from the Preferred Securities.

     SECTION 9.5  Governing Law

     THIS PREFERRED SECURITIES GUARANTEE SHALL BE GOVERNED BY, AND CONSTRUED AND
INTERPRETED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF DELAWARE AND ALL RIGHTS
AND REMEDIES SHALL BE GOVERNED BY SUCH LAWS WITHOUT REGARD TO PRINCIPLES OF
CONFLICTS OF LAWS.

     SECTION 9.6  Counterparts

     The parties may sign any number of copies of this Preferred Securities
Guarantee. Each signed copy shall be an original, but all of them together
represent the same agreement. Any signed copy shall be sufficient proof of this
Preferred Securities Guarantee.

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<PAGE>

     THIS PREFERRED SECURITIES GUARANTEE is executed as of the day and year
first above written.


                                   RADIO ONE, INC.,
                                        as Guarantor

                                   By:__________________________________________
                                       Name:
                                       Title:

                                   WILMINGTON TRUST COMPANY,
                                       as Preferred Securities Guarantee Trustee

                                   By:__________________________________________
                                       Name:
                                       Title:




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