Allegaeon has dropped a high‑energy performance video for “Dark Matter Dynamics,” a track from its seventh studio album, The Ossuary Lens. The clip arrives just in time for the band’s set at Flatline Fest, which will take place June 13‑14 2026 at the Oriental Theater in Denver, Colorado. The festival’s lineup already boasts labelmates Cattle Decapitation, The Zenith Passage, and a host of other extreme‑metal heavyweights.

The Ossuary Lens was issued April 4 2025 through Metal Blade Records and marks the first Allegaeon release to feature vocalist Ezra Haynes since 2014’s Elements of the Infinite. The album continues the group’s trademark blend of technical death‑metal riffage and atmospheric passages, a formula that has defined every entry in their seven‑album catalog.

In the new video, guitarist and multi‑instrumentalist Adrian Bellue takes center stage, having contributed to both the composition and performance of “Dark Matter Dynamics.” According to guitarist Greg Burgress, “Dark Matter Dynamics is a very special song for me. Having the opportunity to explore my love for steel‑string acoustic music, and bringing it into the fold with ALLEGAEON, will forever be a source of pride. Not only that but exploring this marriage of two styles with an acoustic heavy weight Adrian Bellue was equally special.” Vocalist Ezra Haynes added, “Dark Matter Dynamics is here and I am pumped! Over recent years, we’ve grown close with our good buddy, Adrian Bellue, and I’m thankful Greg introduced us! He rips on the guitar and he’s an even better friend. We’re especially excited to play ‘Dark Matter Dynamics’ Saturday night at Flatline Fest in Denver with Adrian himself! The chorus gets me hyped! I think it’s the most jump‑worthy ALLEGAEON riff ever written! This song has that classic, science‑based ALLEGAEON vibe and theme, and it sonically showcases the album’s range, letting the track breathe with a soulful, atmospheric instrumental piece that contrasts perfectly with the heavy riffs surrounding it.”

The footage was shot by Kyle Lamar, who captures the band’s dynamic stage presence and the intricate interplay between Bellue’s acoustic passages and the group’s heavier sections.

Flatline Fest, organized by producer Dave Otero, debuted in 2026 as a two‑day extreme‑metal festival. The event will run June 13‑14 at the Oriental Theater and feature acts such as Cattle Decapitation, Aborted, Archspire, the Zenith Passage, Cephalic Carnage, and Allegaeon. A masked band called Nuclear Power Trio, rumored to include members of Cephalic Carnage, Allegaeon, and Havok, is also scheduled to perform.

The release of the “Dark Matter Dynamics” video and the announcement of Allegaeon’s Flatline Fest slot come at a time when the band is promoting The Ossuary Lens and preparing for a high‑profile festival appearance. Fans of the group’s technical death‑metal style will have the opportunity to see the new material live in a festival setting that gathers many of the genre’s leading acts.

As of now, the video is available on Allegaeon’s official channels, and the band’s performance at Flatline Fest is confirmed for the weekend of June 13‑14. The album remains available for purchase and streaming through Metal Blade Records and major digital platforms.