From N.Y.C. to Sin City, see how Gaga, Fergie, Rihanna and more popped the cork on 2012
Credit: Gustavo Caballero/Getty
Updated: Sunday Jan 01, 2012 | 11:00 AM EST
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Days after making a casual McDonald's run in London, Rihanna glams it up for the Sean "Diddy" Combs-hosted CIROC: The New Year 2012 bash in Miami.
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