Legendary hip-hop producer Marley Marl is recuperating in a New York hospital after suffering a heart attack Tuesday.

Marl, a pioneer in the industry, currently has an album out with fellow hip-hop legend, KRS-One, called Hip-hop Lives. The two were involved in one of hip-hop’s oldest creative beefs.

The 44 year-old Marl made a name for himself in the 80s and 90s working with artists such Eric B. & Rakim, Big Daddy Kane, Kool G. Rap, TLC, and many more.