Danny Thomas to Gordon Jenkins in 6 Steps
- Danny Thomas starred in I'll See You in My Dreams as Gus Kahn
- Gus Kahn wrote Makin' Whoopee!
- Makin' Whoopee! was first recorded by Eddie Cantor
- Eddie Cantor starred in the 1944 film Show Business
- Show Business actors include It Had to Be You
- It Had to Be You was arranged by Gordon Jenkins