Don Coster to Best Friend in 7 Steps
- Don Coster arranged Bongo Rock
- Bongo Rock was arranged by Harry Nilsson
- Harry Nilsson wrote Eddie Makes Three
- Eddie Makes Three was published by Unichappell Music
- Unichappell Music published Episode
- Episode was published by Warner-Tamerlane Publishing Co.
- Warner-Tamerlane Publishing Co. published Best Friend