Jill Gibson time when the leader of the group, John Phillips, fired his wife, Michelle Gilliam Phillips, from the band on Saturday, June 4, 1966, for having had an affair with Gene Clark of The Byrds. Instead of the group breaking up, they asked Jill Gibson to join The Mamas & the Papas as their newest member "Mama Jill". Shortly after joining the band, The Mamas & the Papas, along with Lou Adler, left for Europe for several weeks to begin working together. Arriving in London, England, Gibson, Cass Elliot, John Phillips, Denny Doherty, and Lou Adler rented the top half of
Michelle Phillips vocalist of the 1990s pop trio Wilson Phillips. After her marriage to John Phillips at age eighteen, the couple relocated to New York City, where they began writing songs together. There, Phillips was a founding member of the Mamas & the Papas, helping to form the vocal group in 1965. She co-wrote some of the band's hits, including "California Dreamin'", which appears on their debut album "If You Can Believe Your Eyes and Ears" (1966). Recording of the Mamas and the Papas' second album (eponymously titled "The Mamas and the Papas" (1966) and sometimes referred to as "Cass, John, Michelle,