That'll Be the Day to Rachael MacFarlane in 9 Steps
- That'll Be the Day was based on the song 1941
- 1941 was covered by John Randolph Marr
- John Randolph Marr recorded I Wonder Who's Kissing Her Now
- I Wonder Who's Kissing Her Now was arranged by Gordon Jenkins
- Gordon Jenkins arranged It Had to Be You
- It Had to Be You appeared in the film Show Business
- Show Business is a 1944 film starring Eddie Cantor
- Eddie Cantor was the first singer to record Makin' Whoopee!
- Makin' Whoopee! was recorded by many artists including Rachael MacFarlane