Cowboy to Blackbird in 6 Steps
- Cowboy was produced by Harry Nilsson
- Harry Nilsson wrote The World Is Coming To An End
- The World Is Coming To An End was published by Blackwood Music
- Blackwood Music published Mucho Mungo-Mt. Elga
- Mucho Mungo-Mt. Elga was written by John Lennon
- John Lennon wrote Blackbird