Lopez' other work with Marx includes the Tony Award-winning puppet musical Avenue Q. They also collaborated with Debra Fordham and Paul F. Perry on the songs for a musical episode of the tv show Scrubs in which Stephanie D'Abruzzo guest-starred.
Lopez and his wife, Kristen Anderson-Lopez, adapted Pixar's non-musical animated film Finding Nemo as a thirty-minute stage musical featuring over-sized puppets for Disney's Animal Kingdom theme park in 2007.
Lopez commented on creating Kermit, Prince of Denmark, which was very loosely based on Hamlet:
- Bear in the Big Blue House
- "Clean Up the Truck" (with Kristen Anderson)
- "The Wide, Wide World" (with Kristen Anderson)
- "Everything Is Great About the Library" (with Kristen Anderson)
- "Oh, What a Game" (with Jeff Marx)
- ↑ Avenue Q: The Book, p. 10