Harold Arlen to Doris Day in 9 Steps
- Harold Arlen wrote Over The Rainbow
- Over The Rainbow was produced by Derek Taylor
- Derek Taylor produced 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 written by Gus Kahn
- Gus Kahn is played in I'll See You in My Dreams by Danny Thomas
- Danny Thomas recorded a duet of "Makin' Whoopee" with Doris Day