Glen Campbell to Caveman in 15 Steps
- Glen Campbell played guitar for Bongo Rock
- Bongo Rock was arranged by Harry Nilsson
- Harry Nilsson produced Back Off Boogaloo
- Back Off Boogaloo features piano played by Jane Getz
- Jane Getz played piano for Pussy Cats
- Pussy Cats includes saxophone played by Bobby Keys
- Bobby Keys played sax for Mucho Mungo-Mt. Elga
- Mucho Mungo-Mt. Elga features guitar played by Jesse Ed Davis
- Jesse Ed Davis played guitar for Too Many Cooks
- Too Many Cooks was produced by John Lennon
- John Lennon wrote She's Leaving Home
- She's Leaving Home was written by Paul McCartney
- Paul McCartney appeared in a 1994 Public Service Announcement for Recording Artists, Actors, and Athletes Against Drunk Driving
- Recording Artists, Actors, and Athletes Against Drunk Driving created a PSA featuring Ringo Starr
- Ringo Starr starred in Caveman