Their third album, "On the Third Day", included a rock interpretation of "In the Hall of the Mountain King". The album had another hit single, titled "Showdown". ELO began to tour the United States. They started with small audiences. They became more popular with time, and added theatrical touches to their shows. New contact microphones made it possible for the classical musicians to move around and even dance on stage, as pop musicians did. The audiences enjoyed watching them.