Steven's Adventures in Camelot High: The Equestria Girls

Untitled Steven Universe/My Little Pony: Equestria Girls Crossover is a 2015 crossover TV special between Steven Universe and My Little Pony: Equestria Girls animated by Rebecca Sugar and Lauren Faust and directed by Jayson Thiessen.

Summary
Steven Universe and the Gems must meet Twilight Sparkle in the human world and must find the true secret of Camelot High. When Camelot High has three new villains, Adagio Dazzle, Sonata Dusk and Aria Blaze, Steven and the Gems and the other Mane Six turns to the Cutie Mark Crusaders to battle the sirens!