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

DEMI MOORE

Taking a cue from the weekend's big event, the star tops off her intricately feathered Prabal Gurung dress with a Philip Treacy fascinator, Cartier diamonds, Christian Louboutin bag and Casadei pumps.