Music producer and mogul Irv Gotti, who helped propel Ashanti and Ja Rule to prominence and collaborated with the likes of Jennifer Lopez and Kanye West, has died. He was 54. A cause of death has not yet been confirmed for the Queens-born co-founder of Def Jam imprint Murder Inc.

Before launching Murder Inc. in New York City in 1998, Gotti worked as an A&R at Def Jam, where he helped bring DMX, Jay-Z and Ja Rule to the label. Under the moniker DJ Irv, he produced the song “Can I Live” from Jay-Z’s 1996 debut, Reasonable Doubt.

Legendary hip-hop producer Irv Gotti, known for his work with Ja Rule, Ashanti, and DMX, has passed away at 54. Tributes pour in for his impact on hip-hop.