John Lennon doing backing vocals on David Bowie's "Fame". (Lennon is also credited as a co-writer of the song).
https://youtu.be/O9kuNMdUq_0
https://youtu.be/O9kuNMdUq_0
Have you got a reliable reference for that? Can't find anything.
The Shadows did their own version not long after the original, but everything points to it being Alan Caddy. Besides, there's a good chance Hank Marvin would've been under contract, and therefore not available.
Rick Wakeman plays piano on Bowie's' Life On Mars , Changes , and Oh You Pretty Things .
Eric Clapton plays lead on The Beatles 'While My Guitar Gently Weeps' .
Bowie sung on the backing of Lulus version of Bowie’s Man Who Sold the World
Sandy Denny not famous? If there was ever an encyclopaedia of British folk music, her name ould be cross-referenced throughout.Sandy Denny (maybe not all that famous) on Led Zeppelin's Battle of Evermore