Edgar Yipsel Harburg to Over The Rainbow in 8 Steps
- Edgar Yipsel Harburg wrote It's Only a Paper Moon
- It's Only a Paper Moon was sung by Harry Nilsson
- Harry Nilsson wrote Mi Amigo
- Mi Amigo was written by Perry Botkin
- Perry Botkin (the elder) played guitar for Bing Crosby
- Bing Crosby is one of the many artists that recorded Makin' Whoopee!
- Makin' Whoopee! was produced by Derek Taylor
- Derek Taylor produced Over The Rainbow