Last Night's Look: Hit or Miss?

Vote on this week's styles including Ashlee Simpson-Wentz, Jessica Alba and more stars! You decide – are they fashionistas or flops?

BLAKE LIVELY

The Gossip Girl star flaunts her flawless figure in a one-shouldered fuchsia Diane von Furstenberg dress and gold Jimmy Choo pumps as she visits The Late Show with David Letterman.