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.

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

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.

Anthony Leonard Platt, also known as DJ Unk, has died at age 43, according to reports from the Atlanta Journal-Constitution and Rolling Stone. The Atlanta rapper was best known for the hits "Walk It Out" and "2 Step.

DJ Unk, the Atlanta rapper best known for his hits “Walk It Out” and “2 Step,” has died. He was 43. Born Anthony Leonard Platt, Unk passed away on Friday, according to a statement from Korey “Big Oomp” Roberson, who founded the record label Big Oomp Records, which signed Unk in 2000.

Anthony Leonard Platt, known as DJ Unk, will be remembered as Big Oomp Records legend, a husband, and a father.

The husband and father, born Anthony Leonard Platt, was remembered as "a true ATL legend" Atlanta rapper and hype man DJ Unk has died. He was 43. Born Anthony Leonard Platt, the artist rose to fame in the early 2000s with hits like “Walk It Out” and “2 Step.