Hugh Mundell, a protoge of Augustus Pablo, actually got his start with Joe Gibbs with a single that has yet to be released. Eventually he made his way to Pablo's soundsystem as a DJ. (You can hear some of his DJ work here under the name Jah Levi.) His first album with Pablo, while he was still a teenager, was the ground breaking "Africa Must Be Free by 1983."
After his work with Pablo he went on to record with producers Prince Jammy and Henry "Junjo" Lawes before his tragic death in 1983.