Tulus is a Norwegian black metal band, formed in 1991 in Oslo.Members of Tulus later went and formed the band Khold.After Khold went on hold in 2006, Blodstrup and Sarke resurrected Tulus.Tulus has a "fourth member": Blodstrup's wife, Hildr (Hilde Nymoen), who writes all lyrics for both Tulus and Khold.