Attention metalheads! Hellfest is returning to the Loire Valley’s wine country, in Clisson, for its 19th edition to be lived from Thursday, June 18 to Sunday, June 21, 2026. What’s on the menu? A lineup of big-name acts to discover, especially on the Main Stages. But if you’re into black metal or folk metal, head to the Temple stage, where a slew of artists are lined up. Rotting Christ, Gaerea, The Gathering… Here are five bands not to miss this summer on the Temple stage at Hellfest!