Four decades under their belt and still that drive to break the mould, to provoke. Not for publicity, but because it’s the DNA of this pioneering band—the founders of the infamous second wave of black metal, the one that came from the Scandinavian countries. MAYHEM forges ahead, smiles in the face of adversity, embraces criticism, and feeds on controversy. Every appearance of the band is a key moment of the festival, and the 2026 edition will uphold that tradition.