Which of the following songs does Justin Bieber sing with Jaden Smith, the son of Will Smith?

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. but was re-written to fit the film "Karate Kid" (2010) "Never Say Never" was performed by Justin Bieber and Jaden Smith, who 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. In 2011 they recorded "Happy New Year" together.