We can't forget the classic, "Oh Lord, I'm Fixin to Die Rag" (also known for its leadin; "The F-*-*-* cheer") popularized by Country Joe McDonald and the Fish at Woodstock:

    ". . . . And its one, two, three, what're we fighting for,

      Don't ask me, I don't give a damn, next stop is Vietnam.

      And its five, six, seven, open up the pearly gates,

      Ain't no use to wondering why, whoopee, we're all going to die."