- Overture
- Oh, The Thinks You Can Think
- Horton Hears A Who
- Biggest Blame Fool
- Here On Who
- Day For The Cat In The Hat, A
- It's Possible (In Mcelligot's Pool)
- How To Raise A Child
- The Military
- Alone In The Universe
- One Feather Tail Of Miss Gertrude Mcfuzz, The
- Amazing Mayzie
- Amazing Gertrude
- Monkey Around
- Chasing The Whos
- How Lucky You Are
- Notice Me, Horton
- How Lucky You Are (Mayzie's Reprise)
- Act 1 - Finale: Horton Sits On The Egg
- Egg, Nest And Tree
- Mayzie In Palm Beach
- Alone In The Universe (Reprise)
- Solla Solew
- Havin' A Hunch
- All For You
- The People Versus Horton The Elephant
- Finale/oh, The Thinks You Can Think (Reprise)
- Green Eggs And Ham