Mastodon's upcoming ninth studio album, Marrow Deep, is scheduled for official release on August 28, 2026, via Loma Vista Recordings. This highly emotional 12-to-13-song double vinyl (2LP) set serves as a heavy, cathartic monument to processing profound grief following the tragic passing of founding guitarist and vocalist Brent Hinds in a motorcycle accident. Recorded with new guitarist Nick Johnson, the album features early singles like "Your Ghost Again" and the Josh Homme collaboration "Snakes for Dinner"