Music producer who co-wrote the Oscar-winning song Lose Yourself, which was performed by rapper Eminem.
He became involved in the music industry when he was 19.
He won a Grammy Award along with Eminem for helping to produce the rapper's album The Slim Shady in 1999.
He grew up in Ohio where he was involved in sports and music.
He worked with music producer Quincy Jones when he was 19.