Photo SpecialNew Year's Eve Party Stars
From N.Y.C. to Sin City, see how Gaga, Fergie, Rihanna and more popped the cork on 2012
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HEY MR. DJ!
Also at the 1 OAK Las Vegas blowout: Kanye West, who got the party started by spinning tunes under the pseudonym YeezyWorldPeace.
