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
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LOCKING HORNS
Also at Sin City's Chateau Nightclub & Gardens, an expectant Kourtney Kardashian and baby daddy Scott Disick herald the new year by tooting a tune.
