Last year's (06) Eurovision Song Contest winners LORDI have been invited to perform on the main stage at this summer's (07) Ozzfest with headliner Ozzy Osbourne.
Rockers Hatebreed have also been confirmed for the touring festival, which begins in July (07) in Seattle, Washington.
Osbourne and his manager/wife SHARON have already announced this year's Ozzfest will be a sponsor-driven, free event - and the acts on the bill will be asked to play without being paid.
In an interview with Billboard.com, Sharon Osbourne says, "As long as everybody has a great time, nobody loses money or goes broke doing this, what harm will it do to go out there and do something like this?"
Fans will be able to secure free Ozzfest tickets by visiting tour sponsors' websites.