Exhibit 4.2

      	
              NUMBER

            	
              SHARES

            
	
              C-

            	 
	 	
              CUSIP

            


      

      

      SEE REVERSE FOR CERTAIN DEFINITIONS

      KKR ACQUISITION HOLDINGS I CORP.

      

      

      INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE

        CLASS A COMMON STOCK

      

      

      This Certifies that ___________________________________ is the owner of ___________________________

      

      

      FULLY PAID AND NON-ASSESSABLE SHARES OF THE PAR VALUE OF $0.0001 EACH OF THE CLASS A COMMON STOCK OF KKR ACQUISITION HOLDINGS I CORP.

        (THE “COMPANY”)

      

      

      transferable on the books of the Company in person or by duly authorized attorney upon surrender of this certificate properly endorsed.

      

      

      The Company will be forced to redeem all of its shares of Class A common stock if it does not complete a business combination by          , 2023 or such later date as may be approved by the Company’s stockholders in
        accordance with the terms of its amended and restated certificate of incorporation, all as more fully described in the Company’s final prospectus dated , 2021.

      

      

      This certificate is not valid unless countersigned by the Transfer Agent and registered by the Registrar.

      

      

      Witness the facsimile seal of the Company and the facsimile signatures of its duly authorized officers.

      

      

      [Corporate Seal]

      Delaware

      

      

      	 	 	 
	
              Chief Executive Officer

            	 	
              Chief Financial Officer

            


      
        
          


      

      

      

      KKR ACQUISITION HOLDINGS I CORP.

      

      

      The Company will furnish without charge to each stockholder who so requests the powers, designations, preferences and relative participation or other special rights of each class of stock or series thereof of the
        Company and the qualifications, limitations, or restrictions of such preferences and/or rights. This certificate and the shares represented thereby are issued and shall be held subject to all the provisions of the Company’s amended and restated
        certificate of incorporation and all amendments thereto and resolutions of the Board of Directors providing for the issue of securities (copies of which may be obtained from the secretary of the Company), to all of which the holder of this
        certificate by acceptance hereof assents. The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations:

      

      

      	
              TEN COM

            	
              —

            	
              as tenants in common

            	
              UNIF GIFT

              MIN ACT

            	
              —

            	 	
              Custodian

            	 
	 	 	 	 	 	 	 	 
	
              TEN ENT

            	
              —

            	
              as tenants by the entireties

            	 	 	
              (Cust)

            	 	
              (Minor)

            
	 	 	 	 	 	 	 	 
	
              JT TEN

            	
              —

            	
              as joint tenants with right of survivorship and not as tenants in common

            	 	 	
              under Uniform Gifts to Minors Act

            
	 	 	 	 	 	
              (State)

            


      Additional abbreviations may also be used though not in the above list.

      

      

      
        
          


      

      For value received, _______________________ hereby sells, assigns and transfers unto

      

      

      (PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER(S) OF ASSIGNEE(S))

      

      

      (PLEASE PRINT OR TYPEWRITE NAME(S) AND ADDRESS(ES), INCLUDING ZIP CODE, OF ASSIGNEE(S))

      

      

      Shares of the capital stock represented by the within Certificate, and hereby irrevocably constitutes and appoints Attorney to transfer the said stock on the books of the within named Company with full power of
        substitution in the premises.

      

      

      	
              Dated:

            	 	 	 
	 	 	 
	 	 	
              NOTICE: THE SIGNATURE(S) TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.

            


      Signature(s) Guaranteed:

      	
              By:

            	 	 	 
	
              THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM,
                PURSUANT TO S.E.C. RULE 17Ad-15 (OR ANY SUCCESSOR RULE) UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED).

            


      

      

      
        
          


      

      

      

      In each case, as more fully described in the Company’s final prospectus dated          , 2021, the holder(s) of this certificate shall be entitled to receive a pro-rata portion of certain funds held in the trust
        account established in connection with the Company’s initial public offering only in the event that (i) the Company redeems the shares of Class A common stock sold in the Company’s initial public offering and liquidates because it does not
        consummate an initial business combination by , 2023, (ii) the Company redeems the shares of Class A common stock sold in its initial public offering in connection with a stockholder vote to amend the Company’s amended and restated certificate of
        incorporation (a) to modify the substance or timing of the Company’s obligation to allow redemption in connection with the Company’s initial business combination or to redeem 100% of the Class A common stock if it does not consummate an initial
        business combination by , 2023 or (b) with respect to any other material provision relating to stockholders’ rights or pre-initial business combination activity, or (iii) if the holder(s) seek(s) to redeem for cash his, her or its respective shares
        of Class A common stock in connection with a tender offer (or proxy solicitation, solely in the event the Company seeks stockholder approval of the proposed initial business combination) setting forth the details of a proposed initial business
        combination. In no other circumstances shall the holder(s) have any right or interest of any kind in or to the trust account.