Harry Nilsson to Isham Jones in 10 Steps
- Harry Nilsson wrote Mexico City
- Mexico City was published by Black Molasses Music
- Black Molasses Music published I've Got It
- I've Got It was written by Perry Botkin
- Perry Botkin (the elder) played guitar for Bing Crosby
- Bing Crosby is one of the many artists that recorded 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 Isham Jones