The pop star rocks the mic in L.A. during rehearsals for Sunday's American Music Awards. Plus: Heidi Klum, Matthew & Levi, Rob & Taylor and more
Credit: Jemal Countess/Getty
Published: Friday Nov 20, 2009 | 05:20 PM EST
More from PEOPLE
See More News
4 of 16
Diddy steps up to celebrate a V.I.P. – himself! – during his belated 40th birthday bash at New York City's Plaza Hotel on Thursday. The music mogul's star-studded party drew guests including Kim Kardashian, Jay-Z and Martha Stewart.
Copyright © 2013 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.
In partnership with AOL