ATLANTA -- The cause of death for DJ Unk, the Atlanta rapper known for 2000s hit songs “Walk It Out” and “2 Step,” has been revealed days after his death on Jan. 24 at age 43.

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

DJ Unk passed away after he suffered from a heart attack. The Atlanta rapper's wife, Sherkita Long-Platt, confirmed his cause of death to TMZ on Sunday, January 26. She said Unk suffered a heart attack while he was asleep and never woke up.

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.

Sherkita Long-Platt, DJ Unk’s widow, confirmed on Friday (Jan. 24) that the rapper had died at the age of 43. In a heartfelt Facebook post, she wrote, “Please respect me and my family. I just lost my husband and my kids just lost their father. Our life will never be the same. I LOVE YOU ANTHONY FOREVER,” without disclosing the cause of death.

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.

The Atlanta rapper behind those unforgettable party anthems, born Anthony Platt, has died at age 43. News of Unk's passing was confirmed by his wife, Sherkita Long-Platt, in a Facebook post on Friday,