Sonic - Rainbow Rocks (New Version) Canon

The Mane 5 of CHS set up a band for a musical showcase when a group of girls control student's emotions to gain power. They seek help from both Sonic and Princess Twilight, as they believe they would know what to do. However, they're not the only ones on the way. A team of villains from the Lost Hex are hunting Sonic down, and a pair of strange new heroes help to keep hope alive.