1991-NA Shagidiel - guitars  
1993-2004 Nasum - guitars, vocals  
1994-1995 Altar - vocals  
1994-2004 Genocide Superstars - guitars, vocals  
Guest musician:
1999-2000 Regurgitate - vocals  
2000 Exhumed - vocals  
2001 Abaddon Incarnate - vocals  
2002 Rotten Sound - guitars, vocals  
2004 Callisto - guitars  
2005 Deathbound - vocals  

Personal information

Born on: 23.12.1974
Died on: 26.12.2004

Mieszko Talarczyk was the lead singer/guitarist of the Swedish grindcore bands Nasum, Genocide Superstars, Krigshot and Charles Harfager. Known for his engineering and production abilities, he co-founded Soundlab studios with Millencolin guitarist Mathias Färm.

In 2004, Mieszko went on holiday to Thailand with his girlfriend during a break in between albums, and died in the tsunami disaster on December 26, 2004. His body was identified on February 16, 2005. His girlfriend survived, although badly injured. After Mieszko died, Nasum and Genocide Superstars disbanded.