Twelve Thirty (Young Girls Are Coming to the Canyon) Twelve Thirty (Young Girls Are Coming to the Canyon) "Twelve Thirty" a.k.a. "Twelve-Thirty (Young Girls Are Coming to the Canyon)", the song's main refrain, is a song by The Mamas & the Papas. After the release of the group's third album -- "Deliver"—and their appearance as the closing act of the Monterey International Pop Festival, the group was scheduled to appear in England. The visit was catastrophic for both the group and Cass Elliot (see The Mamas & the Papas main article for further details), and resulted in Cass leaving the group temporarily. The group had completed four tracks for
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,