It's a shame that this didn't happen. Adagio and her siren friends used their gems to trick everyone so they could easily win the battle of the bands they suggested. After their gems broke thanks to the magic of friendship, their voices became dulled out. If only they learned to sing from what's inside their heart. If their hearts are pure, they can sing well. That did not happen.One question still remains: we know what happened to the Dazzlings before and during the events of Rainbow Rocks, but what happened to them after they ran away?