The Mamas & the Papas their original roles, Mackenzie Phillips taking Michelle Phillips' part and Elaine "Spanky" McFarlane of Spanky and Our Gang taking the part of Cass Elliot. Little progress was made until after Phillips had been sentenced and served his time in jail. The quartet began rehearsing in earnest and recording demos in the summer of 1981. Their first performances were in March 1982, when they were praised for their "verve and expertise", the "impressive precision" of the harmonies, and the "feeling ... of genuine celebration" on stage. The group toured the United States, including residencies in Las Vegas and Atlantic City, but
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