00:00
136
Watch as Victoria's Secret Supermodels Behati Prinsloo, Adriana Lima, Erin Heatherton, Lily Aldridge, Candice Swanepoel, Alessandra Ambrosio, Chanel Iman, Rosie Huntington-Whiteley and others lip-sync to Katy Perry's "Firework" backstage at the Victoria's Secret Fashion Show.