Going straight from college into the music business, Mary MacGgregor toured the States in the early 1970s performing with various artists. During this period she made the acquaintance of Peter Yarrow of Peter, Paul and Mary fame joining his solo act on tour and making a debut recording appearance on Yarrow's album Love Songs. Shortly afterwards she signed to Arista Records and recorded the album Torn Between Two Lovers featuring four songs penned by Yarrow. The title track, by Yarrow in conjunction with Phil Jarrell, was released in late 1976 and by February the following year the track had become a huge crossover hit topping both the Pop Charts and the Contemporary Adult Charts in the US as well going to number three on the Billboard Country Charts. Selling over a million copies the song also made it across the Atlantic reaching number three in the UK. MacGregor continued with her pop career but the success of Torn Between Two Lovers was never repeated and in later interviews Macgregor confessed to disliking the song, primarily for its lyrical content. In 1999 she formed The Mary MacGregor Band and released the album Perfect Yellow House.