 After playing at a "happening" at Stanford in early December 1966, the band traveled to Los Angeles to record 10 tracks between 12 and 14 December 1966, produced by Bob Shad.The album was released by Mainstream Records in August 1967, shortly after the band's major success at the Monterey Pop Festival.Two tracks, "Coo Coo" and "The Last Time", were released separately as a single, while the tracks from the previous single, "Blindman" and "All Is Loneliness", were added to the remaining eight tracks.