Grammy Award-winning Atlanta metal titans Mastodon have spent 25+ years defying genre boundaries, from the Moby Dick-inspired classic "Leviathan" to 2021's sprawling "Hushed and Grim." Known for crushing riffs, progressive ambition, and a ferocious live show, they return with new material and guitarist Nick Johnston in tow. See them live with Deafheaven and Alcest at The Sound in Del Mar on October 11, 2026!