I Know Why to Steve Douglas in 9 Steps
- I Know Why was written by Harry Warren
- Harry Warren wrote Shuffle Off to Buffalo
- Shuffle Off to Buffalo was sung by Harry Nilsson
- Harry Nilsson was a member of the original Hollywood Vampires
- Hollywood Vampires was a celebrity drinking club that included John Lennon
- John Lennon executed the mix down for Bongo Rock '73
- Bongo Rock '73 features bongos played by Michael Viner
- Michael Viner produced Bongo Rock
- Bongo Rock was arranged by Steve Douglas