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
The Mamas & the Papas singles charted in the UK. The Mamas & the Papas cut their first three albums at United Western Recorders in Hollywood, while the group's subsequent releases were recorded at the eight-track studio John and Michelle Phillips built at their home in Bel Air (at a time when four-track recording was still the norm). John Phillips said, "I got the idea to transform the attic into my own recording studio, so I could stay high all the time and never have to worry about studio time. I began assembling the state-of-the-art equipment and ran the cost up to about a hundred