Who Done It? to Elton John in 8 Steps
- Who Done It? was published by Golden Syrup Music
- Golden Syrup Music published I'll Never Leave You
- I'll Never Leave You was sung by Harry Nilsson
- Harry Nilsson wrote Mexico City
- Mexico City 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 recorded by many artists including Elton John