Everyone is waiting for this. Slipknot’s return to Download festival is and will be an undeniable, unmissable highlight of the weekend. How do I know? Because they always bring everything live. And even when they’re a bit off, it’s still a solid 90 per cent performance. They’ve totally earned every member of the swelling crowd that has gathered at the main stage to watch them today – some 20 years after they first began donning their overalls.