Bobby Roberts (film producer) Bobby Roberts (film producer) Robert M. "Bobby" Roberts (May 9, 1929 – October 10, 2004) was a musician, producer, record executive and Hollywood film producer. In 1964, Roberts co-founded Dunhill Productions, which became Dunhill Records the following year. Roberts also managed performers such as The Mamas and The Papas, Richard Pryor, Mort Sahl, Mama Cass Elliott, Paul Anka, Ann-Margret, Johnny Rivers and many others. Roberts formed Mums Records with Hal Landers and Don Altfeld in 1972. The label, which was distributed by Columbia Records, had several notable releases, including Albert Hammond's hit single "It Never Rains in Southern California", and
The Mamas & the Papas McKenzie (1939–2012). In 1991, Mackenzie Phillips was replaced by Laurie Beebe Lewis, a former vocalist with the Buckinghams who had earlier (1986–1987) temped with the band when Mackenzie Phillips was pregnant. John Phillips dropped out after a liver transplant in 1992 and Doherty returned. Lewis and McFarlane left in 1993, to be replaced by Lisa Brescia and Deb Lyons. The band continued to perform with varying line-ups, including Barry McGuire (1997–1998) and the recovering Phillips, until 1998, by which time, according to one critic, "the jingle singers who sang those fabulous Cass, Michelle, John, and Denny parts were an aural