Irving Berlin to Gus Kahn in 9 Steps
- Irving Berlin wrote Always
- Always was produced by Derek Taylor
- Derek Taylor produced You Made Me Love You (I Didn't Want To Do It)
- You Made Me Love You (I Didn't Want To Do It) 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 Gus Kahn