Harry Nilsson to Caveman in 12 Steps
- Harry Nilsson wrote I Know
- I Know was written by John Marascalco
- John Marascalco wrote So Proud of You
- So Proud of You was published by Robin Hood Music Co.
- Robin Hood Music Co. published Chicago
- Chicago is the birthplace of Jane Getz
- Jane Getz played piano for Drumming is My Madness
- Drumming is My Madness features guitar played by Richie Zito
- Richie Zito played guitar for Back Off Boogaloo
- Back Off Boogaloo features drums played by Ringo Starr
- Ringo Starr married Barbara Bach
- Barbara Bach starred in Caveman