Cinderella? Cinderella! Alvin & the Chipmunks : Season 4 Episode 8

When Brittany refuses to do her chores, Miss Miller tells her that she must mop if she wishes to go to a dance that night. Brittany falls asleep and dreams she is Cinderella. She awakens to find a new party dress and Miss Miller mopping half the floor for her. Brittany realizes she is not living with the wicked stepmother after all.