Usher is Justin's mentor and he's like a big brother of Justin.
- 2009: First Dance
- 2010: Somebody to Love (Remix)
- 2011: Happy Birthday (Remix)
- 2011: The Christmas Song (Chestnuts Roasting On An Open Fire)
My World (2009) (executive producer)
My World 2.0 (2010) (executive producer)
- Somebody to Love (background vocals)
My Worlds Acoustic (2010) (executive producer)
- One Less Lonely Girl (Acoustic) (writer)
- 2012: I Want You (writer)
- Justin first met Usher in a car park.
- Justin once called Usher at 4:30am and screamed: "OMG, IT'S USHER!" then he hang up.
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