Independent record label distributed her label, Ode Records), Joe Cocker, Free, Cat Stevens, Procol Harum, Humble Pie, Peter Frampton, The Police and Sting (as a solo artist), Styx, Bryan Adams, Amy Grant, Suzanne Vega and Sheryl Crow. A&M was also the initial distributor of Windham Hill Records and George Harrison's Dark Horse Records. Alpert and Moss sold A&M Records to Polygram in 1989 with the caveat that Alpert and Moss would continue to manage the label. Polygram was bought by Universal Music Group in 1998, and A&M folded the following year. The punk rock movement was another turning point for independent labels, the
Tommy LiPuma representative for Liberty Records which eventually acquired Imperial Records and its publishing catalog. From here, LiPuma began working in music publishing, but also produced demo sessions for young songwriters such as Jackie DeShannon, Randy Newman and P.J. Proby. In late 1964, LiPuma produced his first recording for release with fellow Clevelanders The O'Jays, yielding the Top 40 R&B hit, "Lipstick Traces". In 1965, Herb Alpert and Jerry Moss hired him to be the first staff producer for their A&M label. Over the next four years, he produced the Top 40 hits, "Guantanamera" for the Sandpipers, "The More I See You"