Exhibit 12.1**CERTIFICATION OF OUR CHIEF EXECUTIVE OFFICER**I, Jason Nanchun Jiang, certify that:1. I have reviewed this annual report on Form 20-F of Focus Media Holding Limited; 2. Based on my knowledge, this annual report does not contain any untrue statement of a materialfact or omit to state a material fact necessary to make the statements made, in light of thecircumstances under which such statements were made, not misleading with respect to the periodcovered by this annual report; 3. Based on my knowledge, the financial statements, and other financial information included inthis annual report, fairly present in all material respects the financial condition, resultsof operations and cash flows of the registrant as of, and for, the periods presented in thisannual report; 4. The company’s other certifying officer and I are responsible for establishing and maintainingdisclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e))and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and15d-15(f)) for the company and have: (a) Designed such disclosure controls and procedures, or caused such disclosure controlsand procedures to be designed under our supervision, to ensure that material informationrelating to the company, including its consolidated subsidiaries, is made known to us byothers within those entities, particularly during the period in which this report is beingprepared;  (b) Designed such internal control over financial reporting, or caused such internalcontrol over financial reporting to be designed under our supervision, to providereasonable assurance regarding the reliability of financial reporting and the preparationof financial statements for external purposes in accordance with generally acceptedaccounting principles;  (c) Evaluated the effectiveness of the company’s disclosure controls and procedures andpresented in this report our conclusions about the effectiveness of the disclosure controlsand procedures, as of the end of the period covered by this report based on suchevaluation; and  (d) Disclosed in this report any change in the company’s internal control over financialreporting that occurred during the period covered by the annual report that has materiallyaffected, or is reasonably likely to materially affect, the company’s internal control overfinancial reporting; and5. The registrant’s other certifying officer and I have disclosed, based on our most recentevaluation, to the registrant’s auditors and the audit committee of the registrant’s board ofdirectors (or persons performing the equivalent function): (a) All significant deficiencies and material weaknesses in the design or operation ofinternal controls over financial reporting, which are reasonably likely to adversely affectthe registrant’s ability to record, process, summarize and report financial information;and  (b) Any fraud, whether or not material, that involves management or other employees whohave a significant role in the registrant’s internal controls over financial reporting.Date: June 30, 2009         By:  /s/ Jason Nanchun Jiang    Name:  Jason Nanchun Jiang    Title:  Chief Executive Officer