Music rules and rainbows rock as Twilight Sparkle and pals compete for the top spot in the Canterlot High "Mane Event" talent show. The girls must rock their way to the top, and outshine rival Adagio Dazzle and her band The Dazzlings, to restore harmony back to Canterlot High.

A city girl falls for a country boy who follows her to New York, but their romance may be over when she must choose between love and a music career.