 "Fathers and Sons" had an all-star backing band that included Michael Bloomfield and Paul Butterfield, longtime fans whose desire to play with him was the impetus for the album.It was the most successful album of Muddy Waters' career, reaching number 70 on the "Billboard" 200.In 1971, a show at Mister Kelly's, an upmarket Chicago nightclub, was recorded and released, signalling both Muddy Waters's return to form and the completion of his transfer to white audiences.