German heavy metal festival Wacken Open Air has revealed a large batch of acts for its 2027 edition, with US groove metal band Five Finger Death Punch, German power metal veterans Helloween and electronicore act Electric Callboy topping the bill. The announcement, made through Metal Hammer, signals another packed line-up for the world's largest metal festival, drawing artists across the genre's spectrum from mainstream heavyweights to more extreme acts.

Also confirmed are British power metal band Dragonforce, who will play a 2027 European exclusive with new co-vocalist Alissa White-Gluz, formerly of Arch Enemy; her separate project Blue Medusa is also on the bill. Other names include hardcore band Knocked Loose, German power metal act Edguy performing as part of their farewell tour, and blackened death metal group Kanonenfieber, alongside further acts still to be detailed.