ACT I
Oh, the Thinks You Can Think!
Cat in the Hat, Boy, Horton, Gertrude, Mayzie, Sour Kangaroo, Mr. Mayor, Mrs. Mayor, General Schmitz, Ensemble
Horton Hears a Who
Horton, Bird Girls, Citizens of the Jungle
Biggest Blame Fool
Sour Kangaroo, Young Kangaroo, Horton, Wickersham Brothers, Bird Girls, Cat, Gertrude, Mayzie, Yertle, Citizens of the Jungle, Boy
Here On Who
Mr. Mayor, Mrs. Mayor, Whos, Grinch, Horton
Oh, The Thinks You Can Think (Reprise)
Cat, JoJo
It's Possible
JoJo, Cat, Fish
How to Raise a Child
Mrs. Mayor, Mr. Mayor
The Military
General Schmitz, Cadets, Cat
The Military (Green Eggs and Ham)
General Schmitz, Cadets
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, Cat
Monkey Around
Wickershams
Chasing the Whos
Sour Kangaroo, Young Kangaroo, Bird Girls, Wickershams, Cat, Horton, Whos, Citizens of Jungle
Notice Me, Horton
Gertrude, Horton
How Lucky You Are (Mayzie's Reprise)
Mayzie, Cat
Horton Sits On The Egg/ Act 1 Finale
Horton, Gertrude, Cat, JoJo, Whos, Bird Girls, Ensemble
