September 26 to Frank Sinatra in 7 Steps
- September 26 is the birthday of Olivia Newton John
- 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 written by Gus Kahn
- Gus Kahn wrote Makin' Whoopee!
- Makin' Whoopee! was recorded by many artists including Frank Sinatra