David Canary to Groucho Marx in 7 Steps
- David Canary recorded I Guess the Lord Must Be in New York City
- I Guess the Lord Must Be in New York City was published by Unichappell Music
- Unichappell Music published Maybe
- Maybe was produced by Harry Nilsson
- Harry Nilsson wrote The Tree
- The Tree is heard in Skidoo
- Skidoo starred Groucho Marx