Olivia Newton John to Billy Rose in 8 Steps
- Olivia Newton John is in the cast of Grease
- Grease cast includes John Travolta
- John Travolta is one of many artists that recorded It Had to Be You
- It Had to Be You was produced by Derek Taylor
- Derek Taylor produced I'm Always Chasing Rainbows
- I'm Always Chasing Rainbows was arranged by Gordon Jenkins
- Gordon Jenkins arranged It's Only a Paper Moon
- It's Only a Paper Moon was written by Billy Rose