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, real name Anthony Leonard Platt, has died. He was 43. The 'Walk it Out' rapper died last week, according to a Facebook post by his wife, Sherkita Long-Platt. She told TMZ that her husband died in his sleep after suffering a heart attack.