A Sparkly Surprise Performance“Bend the knee to drop, straighten it to lift.”Twilight Sparkle stood in her room before her mirror, clad in a crop top and workout pants. Wrapped around her hips was a violet scarf lined with coins. With one leg underneath her and the other leg extended forward, she dropped and lifted her hip as the woman on the DVD instructed.“Drop. And lift. Drop. And lift.”Each movement rattled the coins lining her scarf. By now, she had watched the DVD countless times, and knew each of the instructor’s lines by heart. Every now and then, she glanced over at her notebook computer on her dresser to compare her movements with those of the woman on the screen.Two weeks ago, Twilight and her brother Shining Armor happened upon a belly dance recital where among the performers they found Vice Principal Luna of Canterlot High School and Dean Cadance of Crystal Prep Academy. It had been a bit of a shock for her to learn that both the Dean of her former school and the Vice