Aside from his major successes, first with the Guess Who in the 1960s and then with Bachman-Turner Overdrive in the 1970s, Bachman had his share of setbacks, whether it was clashes with his bandmates over artistic and personal reasons, or the heavy toll of the rock 'n' roll lifestyle on his marriage and... Bachman formed Guess Who in Montreal in 1964. The group became a big hit in Canada after releasing their debut album, which featured songs written by Bachman himself as well as others who were regulars on the Canadian music scene at the time. After releasing another album, More Time, in 1966, Guess Who broke up. In the late '60s, Bachman started working on projects of his own. He released two solo albums, 1969's Paul William Bachman and 1970's The Other Side of Bachman, before joining forces with Turner for three more albums from 1972 to 1974. In between all these releases, he also contributed songs to other artists' albums. One of those was Roger McGuinn of the Byrds' version of "You're a Big Girl Now," which reached number one in the US in 1973. After leaving Bachman-Turner Overdrive in 1975, he went back to school to study music therapy. He received his degree in 1977 and started his own counseling service.