The Mamas & the Papas "High on Arrival", that she had been in a long-term sexual relationship with her late father. Denny Doherty's solo career faltered after the appearance of "Whatcha Gonna Do?" in 1971. The follow-up, "Waiting for a Song" (1974), was not released in the US, although a 2001 reissue by Varèse Sarabande gained wider distribution and the album is now available as a digital download. It features Michelle Phillips and Cass Elliot as backing vocalists, the latter in what proved to be her last recorded performances. A single from the album, "You'll Never Know", made the adult contemporary charts. Doherty then turned
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,