Warner Bros. to Blackbird in 9 Steps
- Warner Bros. published I Need You
- I Need You was produced by Trevor Lawrence
- Trevor Lawrence played saxophone for Pussy Cats
- Pussy Cats includes drums played by Keith Moon
- Keith Moon played Chinese wood blocks for All My Life
- All My Life was produced by John Lennon
- John Lennon wrote She's Leaving Home
- She's Leaving Home was written by Paul McCartney
- Paul McCartney wrote Blackbird