Watch MoviestoWatch. On June 21 and 22, 2008, Seigmen became the first rock band to perform two unforgettable concerts on stage at the new Opera house in Oslo. The performances were the culmination of a whole year of preparations, from the first contact with the Opera house to the intense weeks and days leading up to the event. Those who were there experienced a magical atmosphere and a band that explored all aspects of their own expression. Rarely has a Norwegian rock band embraced the soul of opera with more respect, and never before has the Norwegian Opera experienced such an explosion of energy.