Michelle Gilliam Phillips is an American singer, songwriter and actress. She rose to fame as a vocalist in the musical quartet the Mamas & the Papas in the mid-1960s. Her voice was described by Time magazine as the "purest soprano in pop music". She later established a successful career as an actress in film and television beginning in the 1970s.

The Mamas & the Papas was a folk-rock vocal-group which recorded and performed from 1965 to 1968. The group was a defining force in the music scene of the counterculture of the 1960s. Formed in New York City, the group consisted of Americans John Phillips, Cass Elliot, and Michelle Phillips, and Canadian Denny Doherty. Their sound was based on vocal harmonies arranged by John Phillips, the songwriter, musician, and leader of the group, who adapted folk to the new beat style of the early 1960s.