2011 Metropolitan Museum Costume Institute GalaHollywood's hottest – including Jennifer Lopez, Sarah Jessica Parker, Beyoncé – turned out to fête late, great designer Alexander McQueen

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ALICIA KEYS

The star looks sweet in a head-to-toe chocolate-colored ensemble, from her Givenchy Haute Couture by Riccardo Tisci gown and leather bolero to her textured clutch.