ACT I
Oh The Thinks You Can Think
The Cat, Girl
Horton Hears a Who
Cat, Boy, Horton, Bird Girls, Girl, Jungle Citizens
Biggest Blame Fool
Sour Kangaroo, Little Kangaroo, Horton, Wickersham Brothers, Bird Girls, Jungle Citizens, Gertrude, Mayzie, Cat, Thing 1, Thing 2
Here on Who
Mayor, Mrs. Mayor, JoJo, Horton, The Whos
How to Raise a Child
Mayor, Mrs. Mayor
Oh The Thinks You Can Think (reprise)
Jojo, Ensemble
It's Possible (Pt. 1)
Jojo, The Cat, Fish
It's Possible (Pt. 2
Jojo, The Cat, Fish
Alone in the Universe
Horton, Jojo
The One Feather Tail of Miss Gertrude McFuzz/Amayzing Mayzie
Gertrude, Mayzie, Bird Girls
Amayzing Gertrude (Pt. 1)
Gertrude
Amayzing Gertrude (Pt. 2)
Gertrude, Cat, Bird Girls
Monkey Around/Chasing the Whos
The Wickershams, Sour Kangaroo, The Cat, Horton, Bird Girls, Jungle Citizens, Whos
Notice Me, Horton
Gertrude, Horton
How Lucky You Are
Mayzie, The Cat
Mayzie's Exit/Horton Sits on the Egg/ Dilemma/ Hunters
Horton, Gertrude, Bird Girls
ACT II
Egg, Nest, and Tree
Sour Kangaroo, Horton, Hunters, Bird Girls, Jungle Citizens
Sold/ Mayzie in Palm Beach
Sour Kangaroo, Horton, Bird Girls, Jungle Citizens, Mayzie, The Cat
Mayzie at the Circus
Mayzie
Amayzing Horton
Mayzie, Horton
Alone in the Universe (Reprise 1)
Horton
