Last Night's Look: Hit or Miss?

Vote on this week's styles including Ashlee Simpson, Mariah Carey and more stars! You decide – are they fashionistas or flops?

DEMI MOORE

Draped in an elegant champagne chiffon Versace gown, metallic Roger Vivier clutch and stunning Neil Lane jewels, the actress shines at the White House Correspondents' Dinner in D.C.