So Proud of You to Agatha Christie in 8 Steps
- So Proud of You was published by Robin Hood Music Co.
- Robin Hood Music Co. published I Know
- I Know was written by Harry Nilsson
- Harry Nilsson wrote The Tree
- The Tree was produced by Rick Jarrard
- Rick Jarrard produced Ten Little Indians
- Ten Little Indians is partly inspired by And Then There Were None
- And Then There Were None is a novel by Agatha Christie