Danny Thomas to Richard Adams in 7 Steps
- Danny Thomas starred in I'll See You in My Dreams as Gus Kahn
- Gus Kahn wrote It Had to Be You
- It Had to Be You was sung by Harry Nilsson
- Harry Nilsson wrote I Need You
- I Need You was written by Gerry Beckley
- Gerry Beckley wrote the song Watership Down
- The novel Watership Down was written by Richard Adams