"Happiness Is a Warm Gun" (1968)
The strangest title in the Beatles canon this side of "Octopus's Garden," this White Album track owes its name to George Martin, who brought a magazine into the studio one day. "He showed me a cover of a magazine that said 'Happiness Is a Warm Gun,'" Lennon told Rolling Stone in 1970. "It was a gun magazine. I just thought it was a fantastic, insane thing to say. A warm gun means you just shot something."