 After playing at a "happening" in Stanford in early December 1966, the band travelled back to Los Angeles to record ten tracks between December 12 and 14, 1966, produced by Bob Shad, which appeared on the band's debut album in August 1967.In late 1966, Big Brother switched managers from Chet Helms to Julius Karpen.One of Joplin's earliest major performances in 1967 was at the Mantra-Rock Dance, a musical event held on January 29 at the Avalon Ballroom by the San Francisco Hare Krishna temple.