Exhibit 32.1

CERTIFICATION OF CHAIRMAN AND CHIEF EXECUTIVE OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of YUM! Brands, Inc. (the “Company”) on Form 10-Q for the quarter ended March 22, 2008, as filed with the Securities and Exchange Commission on the date hereof (the “Periodic Report”), I, David C. Novak, Chairman, Chief Executive Officer and President of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.   the Periodic Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.   the information contained in the Periodic Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:  April 29, 2008                                                      /s/ David C. Novak_______________________

Chairman, Chief Executive Officer and President

A signed original of this written statement required by Section 906 has been provided to YUM! Brands, Inc. and will be retained by YUM! Brands, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.