- Recorded January 14, 1969 during the Get Back/Let It Be sessions.
- John Lennon original song.
- There is a relation between the Madman song and Mean Mr Mustard, as they were played together in the sessions.
- Whereas Mean Mustard was a mean old man who shouted obscene things, the Madman is a lunatic who wears pink pajamas and lives on a farm!
- Coincidently there was a meme started in 2015 called \"John Lennon The Absolute Madman\" featuring a picture of John kind of doing the 'ministry of silly walks' also a pre-internet Monty Python meme.