Last Night's Look: Hit or Miss?

Vote on this week's styles including Rachel McAdams, Eva Mendes and more stars! You decide – are they fashionistas or flops?

DEMI MOORE

Showing off a tiny waist in a belted, black ruffled Oscar de la Renta frock and Brian Atwood pumps, the actress supports her daughter Rumer at the Hollywood premiere of her film Sorority Row.

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