|In Seussical the Musical, cats wear hats and audiences wear smiles -- both two sizes too large. It's almost impossible not to grin when this all-ages musical adaptation of Dr. Seuss' stories plunges you into the whimsical world of Cat in the Hat, Horton Hears a Who! and many more classics. The Cat in the Hat links the stories of a young girl who is a "thinker of strange and wonderful thinks," and Horton the Elephant, who's out to prove that "a person's a person, no matter how small." Seussical's cast of favorite characters, including the Whos of Whoville, Horton and the Cat himself, brings a sense of wonder and fun to this colorful family fave at San Francisco's Alcazar Theatre.