This is a rock/metal concert at The Anthem in Washington, D.C., headlined by Grammy-winning band Mastodon with support from critically acclaimed blackgaze/post‑black metal acts Deafheaven and Alcest. The lineup brings together Mastodon’s progressive/heavy-metal sound with the atmospheric, shoegaze‑inflected styles of Deafheaven and Alcest, making the show notable for its cross‑genre billing. The performance is presented at The Anthem, a major waterfront music venue in Washington, D.C., as part of Mastodon’s North American tour.