Last Night's Look: Hit or Miss?

Vote on this week's styles including Lauren Conrad, Rihanna and more stars! You decide – are they fashionistas or flops?

12 of 46

ALI LARTER

Her plunging, sharp-shouldered Hervé Léger frock may be a show-stopper, but it's her Erickson Beamon statement necklace that grabs all the attention at the Whitney Contemporaries Art Party and Auction in New York.