Check out the band's brand new single and music video here.
Check out previously unreleased track 'Plight Of The Soul' here.
'Worship Decay' is a standalone single, following their latest album 'Cycle Of Suffering'.
Headliners Mercyful Hate and special guests Dimmu Borgir will appear at the festival in 2021.
The event marks the band's first live show since the release of their new album 'What The Dead Men Say'.
Seven more bands have been confirmed including Hatebreed, Bury Tomorrow and Sylosis.
The band give is another taste of their forthcoming album 'Cycle Of Suffering'.
Glaswegian metal band Blackwork have released their debut EP Impasse, which consists of five tracks that totals a running time of 24 minutes. The record showcases elements across the metal spectrum, with bucket loads of aggression and some beautifully melodic moments.