The Master's Apprentices (or The Masters to fans) were an Australian pop/rock band formed in 1965 in Adelaide, South Australia. Featuring singer Jim Keays and songwriter/rhythm guitarist Mick Bower, the band's earliest recordings combined the gritty R&B/rock of British groups like The Pretty Things with the minor-key melodies of The Yardbirds. Bower left the group in late 1967. Plagued by instability (undergoing eight personnel changes between 1966 and 1968), the group moved to England in the early 1970s, achieving some cult success with progressive rock albums before breaking up in 1972.