Anders Nyström
Anders Nyström (born 22 April 1975), also known as Blakkheim (or formerly Blackheim), is a Swedish musician. Biography. Nyström founded the Swedish metal band Katatonia with singer Jonas Renkse in 1991. Nyström is involved in the songwriting, backing vocals, keyboards, programming, arrangements, art direction and production of Katatonia along with Renkse. He used to be a member of the metal band Bewitched from 1995 to 1997 and is still with Jonas Renkse on the death metal project Bloodbath. He has released four albums as the solo black metal act Diabolical Masquerade (1993–2004).