The band formed in 1966, with the members coming from Westminster, California, and Tustin, California (both in Orange County). Jim Quarles came up with the name "because it had a mystical and otherworldly ring", and the father of one of the band members (Jim Foster) served as their manager. The two then began writing songs for the new band: "I didn't know what I was doing at the time. I just wrote the songs with Jim Foster. I didn't have any prior experience." The band would start performing in local venues and school dances to create a more cohesive unit.