Last Night's Look: Hit or Miss?

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

KATY PERRY

An unusually demure Perry arrives at the L.A. premiere of The Tempest in an Elie Saab Couture gown, M.C.L. by Matthew Campbell Laurenza bangles and ring and Judith Leiber clutch.