Loop de Loop to Paul McCartney in 9 Steps
- Loop de Loop was produced by John Lennon
- John Lennon was a member of the original Hollywood Vampires
- Hollywood Vampires was a celebrity drinking club that included Harry Nilsson
- Harry Nilsson wrote Marchin' Down Broadway
- Marchin' Down Broadway was published by Six Continents Music
- Six Continents Music published Don't Leave Me
- Don't Leave Me was recorded by Astrud Gilberto
- Astrud Gilberto recorded The Puppy Song
- The Puppy Song by Mary Hopkin was produced by Paul McCartney