Katy Perry rocked the Victoria's Secret fashion show with her outstanding performance of Firework. Perry already performed Firework during the American Music Awards from where Justin Bieber bagged four major awards.

Katy Perry's performance at Victoria's Secret fashion show was also a powerful one while fan admit that it was much better than her AMA 2010 performance.

If you're that excited, you can watch Katy Perry's Victoria's Secret fashion performance from video embedded below.