Jan Axel "Hellhammer" Blomberg

​From Wikipedia, the free encyclopedia.   Jan Axel "Hellhammer" Blomberg (born August 2, 1969, in Trysil, Norway) is a three time Spellemannprisen award-winning heavy metal drummer. He is most well-known for his drumming with the band Mayhem, with which he began his career. He is endorsed by Paiste…