Join us from 18-21 June 2026 for a no-holds-barred celebration of metal at #GMM26. Tens of thousands of metalheads from across the globe united as one at the most versatile hard rock & metal festival in the Benelux. From heavy to black, from metalcore to hard rock, from punk to classic rock and lots more. #GMM26, the high mass of armour-piercing, spine-ripping, pit-smashing mayhem no metalhead wants to miss out on. The countdown has started!