Gang Starr Rapper in Coma After Heart Attack

Gang Starr front man Guru is in a coma after suffering a heart attack yesterday.

The 43-year-old rapper -- real name Keith Elam -- is reportedly receiving treatment at a New York hospital ... where he is expected to undergo surgery later today.

According to his music partner -- DJ Premier -- the rapper is "fighting for his life." He is joined in the hospital by his sister Tricia, who said, "The family is handling it as best they can."