Lady Gaga in a dress from Alexander McQueen's last collection.
Katy Perry in a white ruffled and black sequined Marchesa minidress.
Taylor Swift in an ivory D&G dress.
Ashley Greene in a black and white bow-tied Giambattista Valli mini dress.
Selana Gomez in a silver Reem Acra gown.
Evan Rachel Wood animal print gown by Gucci.
Hayley Williams in a Miu Miu minidress.
Ciara in sheer lace and feathered from Givenchy Haute Couture.
Emma Stone in a leather Emilio Pucci sheath.
