When three girls come to Canterlot High and turned the music showcase into a battle of the bands, Sunset Shimmer Calls Princess Twilight and Nyx, whom come with Lunar, Dark Nyx, and Tex to help them with the issue with the siren issue. However, a strange thing lingers when Lunar somehow knows One of the sirens. Will they succeed, or will Handsome Plaided, and the Sirens win?