Harry to How Can I Be Sure of You in 8 Steps
- Harry includes drums played by Jim Gordon
- Jim Gordon played percussion for Nilsson Schmilsson
- Nilsson Schmilsson includes percussion played by Richard Perry
- Richard Perry produced Goodnight Vienna
- Goodnight Vienna was recorded by Ringo Starr
- Ringo Starr was a member of the original Hollywood Vampires
- Hollywood Vampires was a celebrity drinking club that included Harry Nilsson
- Harry Nilsson sang How Can I Be Sure of You