Guess Who's Coming To Lunch to Gus Kahn in 9 Steps
- Guess Who's Coming To Lunch was written by Harry Nilsson
- Harry Nilsson wrote All My Life
- All My Life was published by Blackwood Music
- Blackwood Music published Remember (Christmas)
- Remember (Christmas) 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