Bob Larson, an American radio and television evangelist and one of the leading practitioners of modern, Christian exorcisms, has confirmed that he will conduct an exorcism next week on Jørn Stubberud, best known as the bassist in the legendary Norwegian black metal band Mayhem (where he performs under the stage name Necrobutcher).The entire event will be filmed by NRK (Norwegian Broadcasting Corporation), the Norwegian government-owned radio and television public broadcasting company and the largest media organization in Norway, for a special program which will be aired in Norway in October..