Kelly Clarkson! Adele! Katy Perry! See who got busy celebrating way into the night
Credit: Kevin Mazur/WireImage
Updated: Monday Feb 11, 2013 | 10:00 AM EST
By: Kiran Hefa & Kate Hogan
More from PEOPLE
See More News
Click to view your favorites as they make their way down the red carpet
7 of 17
One performance just won't do for Justin Timberlake, who again belts it out from the Hollywood Palladium.
Copyright © 2014 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.