Katy Perry : Firework

“Firework” is a song by American recording artist Katy Perry from her second mainstream studio album Teenage Dream. It was released as the third single from the album on October 26, 2010, to U.S. mainstream radio. The song was written by Perry, Mikkel S. Eriksen and Tor Erik Hermansen from the Norwegian production team Stargate, Sandy Vee and Ester Dean, and it was produced by Stargate and Sandy Vee.