The family of an Atlanta hip-hop pioneer who died on Friday revealed his cause of death. DJ Unk, whose real name was Anthony Leonard Platt, died in his sleep from a heart attack, his wife Sherkita Long-Platt told The Atlanta Journal-Constitution.

DJ Unk, the rapper best known for the bouncy crunk hit 'Walk It Out,' has died. His wife confirmed his death over the weekend and revealed his cause of death.

DJ Unk, the Atlanta musician known for hits including 'Walk It Out,' reportedly died in his sleep following a cardiac arrest, his wife, Sherkita Long-Platt, told TMZ.