Hi Rae,
I love this question! Ever since she was very young, my daughter has always stopped and stared at any show with dancing. I think that you will find that there are many options for this kind of entertainment for your little one.
At the Magic Kindgom, a great opportunity to see dancing is at
Dream Along with Mickey, the stage show performed on the Castle Forecourt Stage many times throughout the day. This includes not only characters such as Mickey Mouse and Minnie Mouse, but also lots of dancing and singing. You could also watch for the
Main Street Trolley Show as it comes up Main Street, typically in the morning. Entertainers ride the trolley and make various stops to sing and dance. At Disney's Hollywood Studios, she may enjoy a Broadway-style retelling of the classic in
Beauty and the Beast - Live on Stage. At Disney's Animal Kingdom,
Finding Nemo - The Musical is a retelling of the Finding Nemo story, with amazing music and dancing added. Finally, you might want to take a look at the parades at the theme parks for your daughter. Although they are not traditional shows, most of them include dancing. These include the new and amazing
Disney Festival of Fantasy Parade at Magic Kingdom.
I hope that these ideas are helpful for you, Rae! Have a wonderful time planning your vacation, and please do not hesitate to ask if you have any further questions.