The Wheels on the Bus, Trip to the Zoo! A read-along Sing-along Kids can sing along with this book's funny animal characters as they turn each page. The big, colorful illustrations that fill every page present a Wheels on the Bus verse, while more and more animals climb aboard for a bus ride. The weight of those many animals finally flattens the bus's tires--and it takes big puffs from the elephant's trunk to blow the tires up again. The illustrations are packed with humor that will make kids giggle when they aren't singing along with the story.