Last Night's Look: Hit or Miss?

Vote on this week's styles including Rachel McAdams, Eva Mendes and more stars! You decide – are they fashionistas or flops?

34 of 52

RUMER WILLIS

Rumer makes white sizzle, highlighting her flawless figure in a sexy frock with peekaboo insets, Irit teardrop earrings and Sergio Rossi outside The Late Show With David Letterman in N.Y.C.