Member:
1987-1990 Mortem (NOR) - drums  
1988-1993 Mayhem - drums (as Hellhammer)  
1990-2007 Arcturus - drums (as Hellhammer)  
1993-1994 Mysticum - drums  
1995- Mayhem - drums (as Hellhammer)  
1997-2003 The Kovenant - drums (as Von Blomberg)  
1998- Winds - drums  
2001- Mezzerschmitt - drums  
2001-2003 Jorn - drums  
2001-2004 Shining - drums  
2004- Age Of Silence - drums  
2006-2007 Den Saakaldte - drums  
2006-2011 Umoral - drums  
2007-2011 Nidingr - drums  
2011- Arcturus - drums  
2014- Suchthaus - drums  
Studio musician:
1998-2000 Thorns - drums  
2000-2001 Troll - drums (as Hellhammer)  
2004 Carnivora - drums  
2004-2005 Antestor - drums  
2005-2007 Dimmu Borgir - drums (as Hellhammer)  
2009 Eyes Of Noctum - drums  
2009 Dynasty Of Darkness - drums  
2013 Andy Winter - drums  
Live musician:
NA- Tritonus - drums  
1992 Emperor - drums (as Hellhammer)  
1995 Immortal - drums  
2005-2007 Dimmu Borgir - drums (as Hellhammer)  
2007-2008 Gorgoroth - drums  
2009- The Kovenant - drums (as Von Blomberg)  
Guest musician:
1996 Ulver - drums  
2000 Fleurety - drums  
2004 Vidsyn - drums  
2009 Fleurety - drums  


Personal information

Also known as: Hellhammer
Born on: 02.08.1969
Official website

Jan Axel 'Hellhammer' Blomberg (born August 2, 1969), is a two time Spellemannprisen award-winning black metal drummer from Trysil, Norway. He is most well known for his drumming with the band Mayhem, with which he began his career. Blomberg was already part of Arcturus at the time, the band he founded along with Steinar Sverd Johnsen. He is endorsed by Sabian Cymbals, Axis Pedals and Pearl drums, though he has been known to use Yamaha drums as well.

Before he started playing music, Blomberg worked in a psychiatric hospital. He joined Mayhem in 1988, following the departure of the drummer and founding member Kjetil Manheim. In addition to Mayhem, one of his long-standing bands was the avant-garde metal band Arcturus, which he formed with Steinar Sverd Johnsen in 1987, originally under the name Mortem, and broke up in April 2007. He has since joined and sessioned for numerous bands.