 He then joined The Nighthawks, releasing an album with the group in 1969, "Man it's Reggae", before restarting his solo career the same year.He had a string of reggae hits in the early 1970s, working with producer Clement Bushay, but his career was interrupted when he served a six-month prison sentence for driving whilst disqualified.While in prison, he wrote many of the songs that would appear on his debut solo album, "The Dynamic Junior English", released in 1974.