Last Night's Look: Hit or Miss?

Vote on this week's styles including Rihanna, Kim Kardashian and more stars! You decide – are they fashionistas or flops?

ANNE HATHAWAY

For the "Model As Muse: Embodying Fashion" Costume Institute Gala, the star revisits '60s high society with her teased mane of hair, Van Cleef & Arpels jewels and wasp-waisted Marc Jacobs purple taffeta strapless dress.