Last Night's Look: Hit or Miss?

Vote on this week's styles including Heidi Klum, Whitney Port and more stars! You decide – are they fashionistas or flops?

DEMI MOORE

Neither snow nor sleet stops Demi from baring her toned arms in a metallic Victoria Beckham frock, which she pairs with a Cartier ring, Jimmy Choo ankle boots and tights at the Sundance premiere of Margin Call.