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
The Mamas & the Papas album "Romance Is on the Rise" (1974) by his then wife Geneviève Waïte, which he also produced; and he co-wrote "Kokomo" (1988), which was a number-one hit for the Beach Boys. Phillips was lost to heroin addiction through much of the 1970s, a period that culminated in his arrest and conviction in 1980 on a charge of conspiring to distribute narcotics, for which he spent a month in jail in 1981. In later years he performed with the New Mamas and the Papas (see below) and appeared in revival shows and television specials. He told his side of the Mamas