Photo SpecialNew Year's Eve Party Stars!
Vegas! Miami! N.Y.C.! Holly Madison, the Kardashians, Rihanna and more pop the cork on 2011
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BOTTLE POPPERS
Jay-Z and Kanye West crack open the bubbly after their exclusive appearance with Coldplay at The Cosmopolitan hotel's grand opening in Las Vegas, making the afterparty at Marquee the second-hottest ticket in town.
