Carlos Baeza served as animation director for the episode. "The Simpsons" creator Matt Groening said animating horses is "the most difficult thing to do". The animators used Eadweard Muybridge's famous animation of a horse galloping and other photo references as models for Princess. In the talent show scene, Lisa is lit up by a spotlight when she performs with her saxophone. After the episode came back from the animation studio in Korea, the staff noticed the light was colored blue, making Lisa look like "a Smurf". The scene had to be re-animated in the United States, and the spotlight effect was reduced.