Paul McCartney to Barbara Bach in 10 Steps
- Paul McCartney wrote Mother Nature's Son
- Mother Nature's Son was written by John Lennon
- John Lennon produced All My Life
- All My Life was published by EMI
- EMI published It's A Jungle Out There
- It's A Jungle Out There was produced by Harry Nilsson
- Harry Nilsson produced Frankenstein, Merlin & The Operation
- Frankenstein, Merlin & The Operation was produced by Ringo Starr
- Ringo Starr starred in Caveman
- Caveman featured Barbara Bach