I'll Never Leave You to Doris Day in 9 Steps
- I'll Never Leave You was produced by Richard Perry
- Richard Perry produced My World
- My World is an album by Ray Charles
- Ray Charles is one of many artists that recorded It Had to Be You
- It Had to Be You was arranged by Gordon Jenkins
- Gordon Jenkins arranged Makin' Whoopee!
- Makin' Whoopee! 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
