Christina Aguilera vs. Mariah Carey in Alaïa

Hayden Panettiere vs. Nicki Minaj in McQueen

Heidi Klum vs.Rosie Huntington-Whiteley in Michael Kors

Heidi Klum vs. Taylor Swift in Kaufmanfranco 

Lily Collins vs. Julianne Hough in Halston Heritage

Rita Ora vs. Nicole Richie in Emilio Pucci 

Rosie Huntington-Whiteley vs. Alyssa Milano in  Stella McCartney