Harry Nilsson to Frank Sinatra in 12 Steps
- Harry Nilsson produced Frankenstein, Merlin & The Operation
- Frankenstein, Merlin & The Operation was produced by Ringo Starr
- Ringo Starr produced Perhaps This is All a Dream
- Perhaps This is All a Dream was arranged by Paul Buckmaster
- Paul Buckmaster arranged Without You
- Without You was produced by Richard Perry
- Richard Perry produced My World
- My World is an album by Ray Charles
- Ray Charles is one of many artists that recorded It Had to Be You
- It Had to Be You was written by Gus Kahn
- Gus Kahn wrote Makin' Whoopee!
- Makin' Whoopee! was recorded by many artists including Frank Sinatra