Last Night's Look: Hit or Miss?

Vote on this week's styles by Blake Lively, Mariah Carey and more stars! You decide – are they fashionistas or flops?

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KATE WALSH

Talk about red carpet sizzle! The actress hits the Hangover premiere in a sexy ruby pencil skirt and purple top by Stella McCartney, Neil Lane jewels, and champagne Sergio Rossi pumps.