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?

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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