From N.Y.C. to Sin City, see how Gaga, Fergie, Rihanna and more popped the cork on 2012
Credit: Michael Tran/WireImage
Updated: Sunday Jan 01, 2012 | 11:00 AM EST
More from PEOPLE
See More News
Need inspiration to welcome 2013 like a celeb? Look no further
12 of 19
Also partying at the Hyde Bellagio, a white-hot Sofia Vergara strikes a pose with a darkly dressed Joe Jonas – but was he as entertaining as Kermit the Frog?
Copyright © 2014 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.