The Countess and The Emperor

Gazelle and Rara are starting to become best music friends ever since they started doing charity work and concerts togather. However, their latest one got interupted by yet another relitive of the Storm King, this time, he looks like he was inspired by Phantom from the Mario/Rabbids Crossover game, named The Opera Emperor, The Storm King's "Weird Grandfather" who is an obvious Opera Fanactic. He challnages both Rara and Gazelle (Who he roasted in song) to a battle of singing, where if they win, they will keep their freedom, but if the Opera Emperor wins, they both will become his wives forever. Can the Lougers and the Mane 7 handle the Opera Emperor, espeically when Pop Daddy Longlegs and The Music Master are reviled to have partnered with the Opera Emperor?