Victoria¹s Secret Angels Behati Prinsloo, Adriana Lima, Erin Heatherton, Lily Aldridge, Candice Swanepoel, Alessandra Ambrosio, Chanel Iman, Rosie Huntington-Whiteley and others come together backstage to sing and dance to Katy Perry's song "Firework" at the 2010 Victoria¹s Secret Fashion Show.
