"Never Say Never" is a song by Canadian singer Justin Bieber. The song is used as the theme song for The Karate Kid, and features rap interludes from the film's star, Jaden Smith. Originally a risque demo with sexual lyrics performed by American singer Travis Garland, it was written and produced by The Messengers, and Omarr Rambert. However, Bieber was tapped to record the song for the film. He re-wrote the song with the original artists along with Jaden Smith and his vocal producer Kuk Harrell, to feature inspirational lyrics to foil the film's theme.