Thomas & Richard Frost (born Thomas Martin and Richard Martin) were members of several San Mateo, CA-based groups during the early to mid-'60s -- including a surf group (the Impressions), a folk-rock group (the Newcastle Five), and a fuzz rock group (the Art Collection, teaming up with visiting New Zealand singer Ray Columbus) -- before forming a mod-pop power trio called Powder. This group moved down to L.A. to record an album at Hollywood's Gold Star studios, and while they were there also found employment as Sonny & Cher's touring group.