 Returning to Jamaica in the mid 1970s he recorded with Phil Pratt, only to return to New York to study engineering.Returning again to Jamaica, he worked with Lee "Scratch" Perry at his Black Ark studio, recording "Kung Fu Man", and recorded with Bunny Lee, which resulted in his debut album, "Don't Cut Off Your Dreadlocks", in 1976.Thompson began to produce his own material, the first fruits being the Trojan album, "I Love Marijuana" (1978), and its dub counterpart "Negrea Love Dub".