Paul McCartney to Guess Who's Coming To Lunch in 9 Steps
- Paul McCartney wrote Blackbird
- Blackbird was written by John Lennon
- John Lennon played piano for Old Dirt Road
- Old Dirt Road was written by Harry Nilsson
- Harry Nilsson wrote Maybe
- Maybe was published by Six Continents Music
- Six Continents Music published Dismember Of The Wedding
- Dismember Of The Wedding was published by Warner-Tamerlane Publishing Co.
- Warner-Tamerlane Publishing Co. published Guess Who's Coming To Lunch