The wife of Anthony Leonard Platt, the man better known as Atlanta hip-hop icon DJ Unk, has revealed the cause of his death.

ATLANTA -- The cause of death for DJ Unk, the Atlanta rapper known for 2000s hit songs “Walk It Out” and “2 Step,” has been revealed days after his death on Jan. 24 at age 43.

DJ Unk passed away after he suffered from a heart attack. The Atlanta rapper's wife, Sherkita Long-Platt, confirmed his cause of death to TMZ on Sunday, January 26. She said Unk suffered a heart attack while he was asleep and never woke up.