What if reality glitched? What if your senses started lying to you, and the bass wouldn’t let you leave? Kozmoz is bringing The Backrooms: An Immersive Experience to Chapel Lounge in Seattle on July 11th—a one-night plunge into surrealism, distortion, and relentless low-end power.
Inspired by the viral legend of the backrooms, this show bends reality with eerie visuals, haunting soundscapes, and bass that warps your senses. Then, when you think it’s over, Kozmoz pulls you deeper into the unknown. There’s no safe exit here. As a San Diego native, Kozmoz—real name Matthias Seyss—built his reputation on aggressive bass, haunting melodies, and cinematic sound design.

Recently, he collaborated with DJ Diesel on Monstercat, showcasing his destructive energy and genre-defying creativity. He’s released on elite labels, earning co-signs from SLANDER, Dirtyphonics, Wooli, and other bass music powerhouses. Additionally, his remixes for NGHTMRE and Riot Ten prove he can transform any track into an auditory fever dream. Moreover, Kozmoz commands the stage with precision, delivering massive performances at Red Rocks and the Aragon Ballroom.
Now, he’s crafting something darker. The Backrooms isn’t just a show—it’s a descent into the uncanny and uncharted. Expect glitchy horror visuals, gut-rattling bass, and suspenseful buildups that trap you in a sonic nightmare. Seattle, prepare for full immersion—The Backrooms takes over Chapel Lounge on July 11th. Doors open at 9 PM. Grab your tickets now… once you enter, there’s no turning back.










