Rock1000, the organization that facilitates groups of 1000 people covering songs by Foo Fighters, Queen, Pixies and more, have done it again – this time covering some classic 90’s grunge.

On July 7, 1000 musicians from all over the world gathered in Frankfurt’s Commerzbank-Arena to perform Rage Against the Machine’s 1991 hit “Killing In The Name”. Get your mind blown below.