Sisters Ann and Nancy Wilson are the creative spark behind Heart, a hard rock group who initially found success in the mid-’70s only to reach greater heights after engineering a major comeback a decade later. Based in Vancouver, British Columbia, Heart was actually formed in 1963 by bassist Steve Fossen and brothers Roger Fisher and Mike Fisher; initially dubbed the Army, they later became White Heart before settling on simply Heart at the beginning of the ’70s. After her arrival in the group, Ann became romantically involved with guitarist Mike Fisher; when Nancy joined in 1974, she in turn began a relationship with guitarist Roger Fisher. Soon after Nancy’s arrival, Mike Fisher retired from active performing to become the band’s sound engineer. After gaining a following in Vancouver, Heart was approached by Shelly Siegel, the owner of the Canadian label Mushroom and, augmented by keyboardist Howard Leese and drummer Michael Derosier, they recorded their debut album, Dreamboat Annie, in 1975.