Black/Death metallers BEHEMOTH were added to this year's 'Sweden Rock Festival'. Read the official announcement:

"Polish BEHEMOTH is a band that lives up to its name. The band's hybrid of death and black metal truly sounds like a beast, especially on stage: the quartet's touring schedule is constantly filled to the brim, so it is a well-oiled machinery that comes to set our stage on fire. The band last visited us in 2005, and has since released the critically acclaimed albums "The Apostasy" (2007) and "Evangelion" (2009)."

Source: SwedenRock.Com