Popular music Producer, Songwriter, and Rapper also known as JD, he became best known for his collaborations. He helped produce Mariah Carey's multi-platinum album The Emancipation of Mimi, including co-writing the song "We Belong Together."
He worked with Chris Kelly and Chris Smith to form the duo Kris Kross and helped their first album, 1992's Totally Krossed Out, achieve multi-platinum sales.
He dated singer Janet Jackson from August 2001 to March 2009. He has a daughter named Shaniah.
He created the show The Rap Game with Queen Latifah. Singers like Ludacris and Usher appeared as guests on the show.