MASTODON and LIFE OF AGONY have been confirmed for the 2005 installment of the Waldrock Festival, set to take place on June 4 in Burgum, Netherlands. The festival billing is now shaping up as follows:

DIO
DIMMU BORGIR
SOILWORK
BLACK LABEL SOCIETY
ACCEPT
MEGADETH
EPICA
MESHUGGAH
METAL CHURCH
ENTOMBED
MASTODON
LIFE OF AGONY

Source:blabbermouth.net