Harry Nilsson to Paul McCartney in 8 Steps
- Harry Nilsson wrote It's A Jungle Out There
- It's A Jungle Out There was published by EMI
- EMI published The World Is Coming To An End
- The World Is Coming To An End was published by Blackwood Music
- Blackwood Music published The Flying Saucer Song
- The Flying Saucer Song was produced by John Lennon
- John Lennon wrote Blackbird
- Blackbird was written by Paul McCartney