Last Night's Look: Hit or Miss?

Vote on this week's styles including Katy Perry, Fergie and more stars! You decide – are they fashionistas or flops?

KIM KARDASHIAN

The always-glam star gives her look a rock-and-roll twist for Avril Lavigne's album party at N.Y.C.'s SL, wearing a zip top and tight leather leggings with an oversized clutch.