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?

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MICHELLE TRACHTENBERG

She might be back to her old scheming ways on the Upper East Side, but the Gossip Girl star is perfectly sweet in her navy blue-topped pencil dress and nude peep-toes for a NBC event in Hollywood.

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