Don't know if this has been done, but we start at The Beatles then name something they were involved with... for example John & Paul sang backing vocals on The Rolling Stones song "We Love You". So I would say:
The Beatles - The Rolling Stones (recorded backing vocals on the song "We Love You".
then the next person has The Rolling Stones and has to link them to someone else like this:
The Rolling Stones - Matchbox Twenty (Mick Jagger co-wrote a song with Rob Thomas for one of their albums)
then onto Matchbox Twenty - Santana (Rob Thomas co-wrote "Smooth" and sang on it)
Santana - Michael Jackson (Santana played lead guitar on a Michael Jackson song from the album "Invincible")
Michael Jackson - Paul McCartney ("Say Say Say", "The Girl Is Mine")
Paul McCartney - Stevie Wonder
etc etc.
I hope that makes it clear so I am going to start with where it all began:
Elvis Presley - Chuck Berry (Presley did a cover of the Chuck Berry song "Promised Land")
Chuck Berry -
