October 23 to It Had to Be You in 8 Steps
- October 23 is the birthday of Ellie Greenwich
- Ellie Greenwich wrote River Deep-Mountain High
- River Deep-Mountain High was produced by Rick Jarrard
- Rick Jarrard produced The Wailing of the Willow
- The Wailing of the Willow was written by Harry Nilsson
- Harry Nilsson recorded A Little Touch of Schmilsson in the Night
- A Little Touch of Schmilsson in the Night features an appearance by Gordon Jenkins
- Gordon Jenkins arranged It Had to Be You