Jackie Charlton and the Tonettes

From episode #24 (first aired 8 December 1970) of legendary BBC sketch show Monty Python's Flying Circus. This band performs "Yummy Yummy Yummy" entirely concealed in large wooden packing crates, as the camera pans and swoops as though it was a regular live performance. The crowning punchline of the "How Not To be Seen" sketch.

See also Arthur Ewing and his Musical Mice, Bolton Choral Society, The Herman Rodriguez Four, The Hunlets,