StyleWatch SpecialLast Night's Look: Hit or Miss?
Vote on this week's styles including Blake Lively, Ashlee Simpson-Wentz and more stars! You decide – are they fashionistas or flops?
More from PEOPLE
KATY PERRY
Balancing a kaleidoscopic sequin pencil skirt with a cropped leather bustier and classic black pumps, the singer sparkles at the House of Molinari birthday extravaganza.
