New Year's Eve

New Year's Eve Party Stars

From N.Y.C. to Sin City, see how Gaga, Fergie, Rihanna and more popped the cork on 2012


Designer Lauren Conrad and former fellow The Hills star Stephanie Pratt make a stylish statement at the Hyde Bellagio celebration in Las Vegas, where Leona Lewis, Wilmer Valderrama and Eliza Dushku were among the revelers.