Harmony and Heart is a reality competition TV series hosted by Charlie Morningstar (Hazbin Hotel) with Blitzo Buckzo (Helluva Boss), Rosie (Hazbin Hotel), Alastor (Hazbin Hotel) and Vaggie (Haznon Hotel) serving as judges. The series features your favorite characters from cartoons, video games and etc singing their hearts out until the finale. The winner wins a prize.