The Bonzo Dog Doo-Dah Band - I'm The Urban Spaceman (1968)

I first heard this as a wee lad (can't say that, not from the UK) young dude on a Dr. Demento compilation.  Years later, I had the opportunity to grab a NOS copy from one of my local haunts.  This is a quirky little song with a star-studded connection - "Apollo C. Vermouth" is a pseudonym for Paul McCartney and Gus Dudgeon, and the band was the house band on Do Not Adjust Your Set, a British kids' show featuring many future Monty Python members.  It really shows here...