Mike Posner is known by co-writing Boyfriend. Mike toured with Justin on his Believe Tour in summer 2013 as one of his opening acts. He also went to the Believe Movie premiere. He appears in the film.
- 2013: Get Down (unreleased)
- 2012: Boyfriend (writer / producer)
- 2012: Boyfriend (Remix) (writer / producer)
- 2013: Boyfriend (Acoustic) (writer)
- 2013: Get Down (writer / drums)
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