 He also took over lead vocal duties on several tracks.The group's first release on the label, "Keeper of the Castle" (1972) was their first pop Top 10 hit since "Bernadette" in 1967.Follow-ups included the 1973 million-selling "Ain't No Woman (Like the One I've Got)", also a top 10 pop hit and their third R&B number 1, and the Top 20 hit, "Are You Man Enough" (1973), (from the 1973 movie "Shaft in Africa").