Rune Eriksen, Norwegian guitarist and composer

Rune Eriksen, also known by his stage name Blasphemer, is a Norwegian musician best known as the former guitarist and songwriter of black metal band Mayhem. He took his stage name from a Sodom song and joined Mayhem in October 1994, before departing the band in late 2008. Eriksen founded his solo project RUÏM in 2020 and is currently a member of Aura Noir, Earth Electric, and the multinational bands Twilight Of The Gods and Vltimas, the former initially being a Bathory tribute band and the latter being a supergroup with former Morbid Angel vocalist David Vincent and drummer Flo Mounier of Cryptopsy. Eriksen and Mounier has previously been a part of death metal artist Nader Sadek's band along with Steve Tucker of Morbid Angel. Eriksen has also been a live member of Gaahls Wyrd and made guest appearances on recordings by Absu, Negură Bunget and Root. His former bands and projects include Mezzerschmitt and the Portuguese gothic doom band Ava Inferi. Eriksen has resided in Portugal since 2004.