Last Night's Look: Hit or Miss?

Vote on this week's styles by Blake Lively, Mariah Carey and more stars! You decide – are they fashionistas or flops?

KRISTEN STEWART

To accept her award for best kiss for her onscreen smooch with Twilight costar Rob Pattinson, the actress is red-hot at the MTV Movie Awards in a punky red-and-black Yigal Azrouël minidress and classic Converse Chuck Taylors.