Diamond Tiara is mean, and the only ponies who ever seem notice it are foals. But, one day, Tiara gets to tag along on a business trip with her father - a trip to see Princess Celestia herself. Princess Celestia is not pleased with how Diamond acts, so she decides to take it upon herself to give Tiara what she deserves, or at least what Celestia thinks she deserves.

--Other tag because I don't see Filthy Rich on the Character List. Tell me where he is if you find him.