Wikipedia
"Waspman" is a mainly instrumental song by The Who, credited to their drummer Keith Moon. The song is the B-side to The Who's single " Relay" (entitled "The Relay" in the United States).
The song is supposedly a tribute to Link Wray, who became famous for his 1958 instrumental hit " Rumble" by Link Wray and his Ray Men. He introduced "the power chord, the major modus operandi of modern rock guitarists" such as Pete Townshend of The Who.
It is thought that John Entwistle wrote the song but gave the credit to Moon, as all members of The Who were supposed to write at least two B-sides, although Roger Daltrey only wrote one, "Here for More", the B-side for " The Seeker" in 1970.
The Who only performed the song live once (June 10, 1974 at New York's Madison Square Garden). The Who - My Generation/Waspman - New York 1974 (17, 18)