It’d be harder to list metal bands of the ’90s and beyond who haven’t learned something from TOOL. Bands like Deftones, Mastodon, Karnivool and Porcupine Tree wouldn’t sound the way they do, were it not for TOOL’s precise balance of melody and intensity, their complex, progressive song structures or Maynard James Keenan’s distinct vocals. But the band’s influence stretches much further than metal and hard rock: Artists as far-reaching as Mac DeMarco and St. Vincent have shown their love for the alt-metal band by covering their classic songs live.