Tool are among the headliners at the 2020 Bonnaroo Music & Arts Festival. That event will be held at Great Stage Park in Manchester, TN on June 11-14 and it will also feature: Primus, Tenacious D, Oysterhead, King Gizzard And The Lizard Wizard, Uncle Acid And The Deadbeats, Flogging Molly, The Struts, The Marcus King Band, The Regrettes, Vampire Weekend, Run The Jewels, and more.