Rarity should have known better than to make an order without seeing the product in the store, but she couldn't help herself this time, and now she's stuck with it. Hopefully she can get some inspiration, and when a certain pony shows up, she learns that she can make anypony glamorous!

Unfortunately she made a promise she isn't sure she can keep, and with the added stress of keeping her shop going, making every pony going to the Ponyville Gala happy, and trying to teach a clumsy pony how to dance, she's finding herself between a rock and a hard place.