Olve Eikemo

Olve Eikemo (born 13 September 1973, Bergen, Norway), better known by his stage name Abbath Doom Occulta, is a Norwegian composer, vocalist, guitarist, bassist, keyboardist, drummer, and one of the founding members of the black metal band Immortal. Before he founded Immortal, Abbath played in a band called Old Funeral, with future Immortal member Demonaz and Varg Vikernes of Burzum fame (though they were not all in the band at the same time). While working with Old Funeral, he also joined Demonaz's band Amputation which later became Immortal. He also plays bass in Demonaz's newly started project Demonaz.

Although he is primarily a guitarist, he is also proficient as a drummer, using techniques such as blast beats and double bass (as heard on the Immortal albums Pure Holocaust and Battles In The North) which are present in black metal.