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.

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,

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.