They're returning soon, it seems...Slipknot perform live at Download 2019Mysterious Slipknot posters have been spotted by fans at this weekend’s Download Festival. Check out the photo below. The metal icons appeared at the Donington Park event yesterday (June 15) for a headline performance on the main stage. Ahead of the show, fans clocked an advert that teases something big from the band next year. […]The post Slipknot fans spot mystery posters at Download Festival appeared first on NME.