Danny Thomas to Walter Donaldson in 7 Steps
- Danny Thomas starred in I'll See You in My Dreams as Gus Kahn
- Gus Kahn wrote It Had to Be You
- It Had to Be You was sung by Harry Nilsson
- Harry Nilsson wrote Open Your Window
- Open Your Window was covered by Ella Fitzgerald
- Ella Fitzgerald is one of the many artists that recorded Makin' Whoopee!
- Makin' Whoopee! was written by Walter Donaldson