Seussical is a musical based on the books of Dr. Seuss that debuted in 2000.

The play's story is a rather complex amalgamation of many of Seuss' most famous books. The basic plot is the same as Horton Hears a Who, although in Seussical Who-ville features characters and senarios from many other Seuss books, including the Butter Side Uppers / Downers from the The Butter Battle, and Jo-Jo from Oh the Thinks You Can Think. The Cat in the Hat also makes an apperance as the narrator.

Other books whose characters and / or settings are incorporated into the play include:

  • How the Grinch Stole Christmas
  • The Lorax
  • Yertle the Turtle
  • Horton Hatches an Egg
  • I Had Trouble in Getting to Solla Sollew
  • McElligott's Pool
  • The One Feather Tail of Miss Gertrude McFuzz