Who does Justin Bieber perform with on "Never Say Never"?

Explanation

Justin Bieber's song "Never Say Never" was originally a demo called "Sex Together". As the title suggests, the song had sexual content. The song was written by The Messengers and performed by Travis Garland. The song was re-written, however, to fit the film "Karate Kid" (2010). "Never Say Never" was performed by Justin Bieber and Jaden Smith. Jaden Smith also plays the lead role in the film. The music video for "Never Say Never" was first released on 31 May 2010, but the song itself was only released on 8 June 2010.