How have I never seen this before!?
Batman (Adam West) sings "Orange Colored Sky" (1966)
Adam West hosted the ABC variety show Hollywood Palace that aired on October 8, 1966. The show opened with a musical performance by Batman singing "Orange Colored Sky." He also closed the show (not in costume) singing the classic "The Summer Wind". This show also featured George Carlin, Roy Rogers and Dale Evans, Ray Charles. and (the must see 2nd performance) Landon's Midgets. The full episode can be found on the Hollywood Palace YouTube page.(via Batman (Adam West & Burt Ward) Facebook)