Slipknot headlined Rock am Ring in Nürburg, Germany in 2019 with the kind of controlled chaos that only a 9-piece metal outfit operating at full force can deliver, running through “Psychosocial,” “Duality,” “Before I Forget” and a hungry crowd’s first live taste of “Unsainted” ahead of the release of ‘We Are Not Your Kind.’ Corey Taylor shifted between guttural screams and melodic hooks while the rest of the band turned the legendary festival stage into an audiovisual assault that reminded everyone exactly why Slipknot remains one of the most vital live acts in heavy music.