Immortal is a black metal band from Bergen, Norway, founded in 1991 by frontman and guitarist Abbath Doom Occulta (Olve Eikemo) and guitarist Demonaz Doom Occulta (Harald Nævdal). The pair worked with various drummers (including Grim, Armagedda and Hellhammer), and were later joined by current drummer Horgh (Reidar Horghagen) in 1996. In March 2015, long-serving member Abbath announced his departure from the group following a dispute with the other members of the band, and he went on to form a new band under his name called Abbath.