Harry Nilsson to Wise Guys in 7 Steps
- Harry Nilsson wrote The Tree
- The Tree was produced by Rick Jarrard
- Rick Jarrard produced She Sang Hymns Out of Tune
- She Sang Hymns Out of Tune was arranged by George Tipton
- George Tipton was nominated for an Oscar for the music he composed for the film Phantom of the Paradise
- Phantom of the Paradise was written and directed by Brian De Palma
- Brian De Palma directed Wise Guys