Blackbird to Lean On Me in 6 Steps
- Blackbird was written by Paul McCartney
- Paul McCartney produced Mary Hopkin's recording of The Puppy Song
- The Puppy Song was published by Six Continents Music
- Six Continents Music published Marchin' Down Broadway
- Marchin' Down Broadway was sung by Harry Nilsson
- Harry Nilsson wrote Lean On Me