- Choreographer: Twyla Tharp
- Music: Donald Knaack
- Costumes: Santo Loquasto
- Lighting: Jennifer Tipton, recreated by Michael Korsch
- World Premiere: Twyla Tharp Dance Company, June 23, 2001
- PBT Performance Date: March 14-16, 2008;
Program Notes (from PBT playbill, 2008; Program notes courtesy of Twyla Tharp)
So named because it is set to a percussion piece, “Junk Music” by Donald Knaack, who composes and performs on found objects and materials that have been discarded by others, the Known By Heart (“Junk”) Duet allows dancers used to the classics to transcend their normal roles and perform with light-hearted give and take.