ArcTanGent Festival 2026: Significant performance lineup features Primus, Chelsea Wolfe & Cult of Luna
for adventurous rock and experimental sounds, has unveiled its trio of main stage headliners — and they’re nothing short of historic. Primus will make their highly anticipated ArcTanGent debut, marking their return to the UK after a hiatus since 2017. Fans can expect a diverse set from Les Claypool and the band, known for their eccentric and genre-defying music that has solidified their iconic status in the rock genre.
Chelsea Wolfe, another standout on the lineup, will finally take the headline slot after initial plans were derailed by the pandemic in 2020. The critically acclaimed artist, following the success of her 2023 album “She Reaches Out To She,” is set to deliver a mesmerizing and unforgettable performance at the festival. In a unique UK exclusive for 2026, Cult of Luna will team up with Julie Christmas to commemorate the tenth anniversary of their influential collaboration “Mariner” with a full-album performance. Both artists have shared their emotional journey revisiting the record, describing the upcoming show as an immersive “experience” rather than just a performance.
The festival’s impressive lineup doesn’t stop with the headliners. A stellar cast of heavy-hitters and exclusive acts are set to grace the stage, including UK math-rock trailblazers SikTh and grindcore legends Napalm Death. High On Fire and Conjurer, along with Oakland’s metal powerhouse and UK heavyweights, respectively, will bring their energy to the festival. The addition of cellist and composer Jo Quail with the Crossbones Ensemble promises a one-of-a-kind UK exclusive performance that is sure to captivate audiences.
These newly announced acts will join an already jam-packed lineup that includes the likes of Igorrr, Perturbator, Chat Pile, Alcest, Oathbreaker, Agent Fresco, TTNG, Heck, Svalbard, and more. Festival organizer James Scarlett expressed his excitement at the rare opportunity to have Primus at ArcTanGent, alongside the long-awaited appearance of Chelsea Wolfe and the celebration of “Mariner,” a timeless record. This trifecta of headline acts in a single year is a testament to the festival’s dedication to bringing together diverse and groundbreaking artists.
Since its inception, ArcTanGent has cemented its position as the UK’s most adventurous rock festival, known for its exclusives, reunions, and groundbreaking performances. Past lineups have featured renowned acts such as Mogwai, Meshuggah, Opeth, Converge, and Deafheaven, underscoring the festival’s commitment to pushing boundaries and fostering a space for bold musical experimentation. The festival’s independent ethos and innovative curation have earned it accolades, including “Best Small Festival” at the UK Festival Awards in 2018, and continue to attract a growing following each year.
With a lineup that promises to deliver unparalleled experiences and highlight some of the most distinctive voices in rock and experimental music, ArcTanGent 2026 is set to be a must-attend event for music enthusiasts. Taking place near Bristol from August 19 to 22, the festival offers a unique opportunity to witness a diverse array of artists across various genres while exploring new sounds and engaging with a community of like-minded music lovers. Get your tickets now and be prepared to embark on a musical journey unlike any other.