ACT I
Oh The Thinks You Can Think
Company
Horton Hears a Who
Cat, Boy, Horton, Bird Girls, Jojo, Jungle Creatures
Biggest Blame Fool
Sour Kangaroo, Horton, Wickersham Brothers, Bird Girls, Jungle Creatures, Gertrude, Mayzie, The 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)
The Cat, Jojo
It's Possible
Jojo, The Cat, Fish
Alone in the Universe
Horton, Jojo
The One Feather Tail of Miss Gertrude McFuzz"
Gertrude
Amayzing Mayzie
Mayzie, Gertrude, Bird Girls
Amayzing Gertrude
Gertrude, 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
Horton Sits
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
Solla Sollew
Horton, Mr. Mayor, Mrs. Mayor, Jojo, Circus Animals
Gertrude/Espionage
Gertrude, Horton
All for You
Gertrude, Bird Girls, The Cat