Harry Nilsson to Edgar Yipsel Harburg in 8 Steps
- Harry Nilsson wrote Ambush
- Ambush 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 produced by Derek Taylor
- Derek Taylor produced Over The Rainbow
- Over The Rainbow was written by Edgar Yipsel Harburg