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 Deliver", which was recorded in the autumn of 1966. The first single from the album, "Look Through My Window", was released in September 1966 (before the last single from "The Mamas & the Papas"). It reached number twenty-four in the US, but did not chart in the UK. The second single, "Dedicated to the One I Love" (February 1967), did much better, peaking at number two in both the US and the UK. That success helped the album, also released in February 1967, reach number two in the US and number four in the UK. The third single, "Creeque Alley"