Ahead of the screening of the 2010 Victoria's Secret Fashion Show next week in the US, the Angels have gotten together for a bit of a song. Lip-synching to Katy Perry's Firework, the models look to be having a ball as they promote the show for CBS. Some of the familiar faces in this clip include Alessandra Ambrosio, Adriana Lima, Chanel Iman, and Rosie Huntington-Whiteley. Makes you wonder how each of these lovely ladies would sound if they weren't lip-synching.