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.

Two days after the death of DJ Unk, the Atlanta rapper behind the 2006 snap hit "Walk It Out," his wife has revealed the cause of his passing.

Authorities on Monday released the cause of death for the patient who died hours after she was found on the roof of Vista Medical Center East in Waukegan.

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, whose real name is Anthony Leonard Platt, died in his sleep from a heart attack, his wife Sherkita Long-Platt told The Atlanta Journal-Constitution. Long-Platt also told TMZ that she wants to dispel any rumors that her husband’s death was drug-related.

Now new reports have confirmed the Atlanta, Ga., rapper’s cause of death. Billboard reports how Sherkita Long-Plattt — the wife of the 43-year-old artist who may be best known for his 2006 hit single “Walk It Out” — confirmed to TMZ he passed away in his sleep after suffering from cardiac arrest.

A rapper and DJ who had two hit songs in the 2000s is dead at age 43. DJ Unk, best known for snap favorites “Walk It Out” and “2 Step,” died Friday, according to longtime producer and collaborator Korey “Big Oomp” Roberson of Big Oomp Records.