Billy Rose to Walter Donaldson in 7 Steps
- Billy Rose wrote It's Only a Paper Moon
- It's Only a Paper Moon was arranged by Gordon Jenkins
- Gordon Jenkins arranged It Had to Be You
- It Had to Be You appeared in the film Show Business
- Show Business is a 1944 film starring Eddie Cantor
- Eddie Cantor was the first singer to record Makin' Whoopee!
- Makin' Whoopee! was written by Walter Donaldson