As part of the ads for Victoria's Secret Fashion Show airing next week, models Behati Prinsloo, Adriana Lima, Erin Heatherton, Lily Aldridge, Candice Swanepoel, Alessandra Ambrosio, Chanel Iman, Rosie Huntington-Whiteley all sing Katy Perry's "Firework" backstage. Attractive models inside!

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The Victoria's Secret Fashion Show will air November 30th at 10pm on CBS.