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 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.

Rapper DJ Unk, who was best known for the bouncy early-2000s crunk hit "Walk It Out," has died. The musician's wife Sherkita Long-Platt announced his death Friday morning on Facebook. "I just lost my husband and my kids lost their father,