Outbreak Fest Expands 2025 Line-Up With Glassjaw, Terror, Big Boy And More

Post-hardcore icons to perform full classic albums in London and Manchester.

Outbreak Fest has announced a major wave of additions to its 2025 line-ups in both London and Manchester, further solidifying its reputation as a cornerstone of UK counterculture.

Leading the new additions is Glassjaw, who will play two career-defining sets at both festival locations. In London’s Victoria Park on June 13, the band will deliver a rare combination set featuring tracks from their seminal albums Everything You Ever Wanted to Know About Silence (2000) and Worship and Tribute (2002). In Manchester, Glassjaw will split the albums across two nights at Bowlers Exhibition Centre, performing Worship and Tribute on June 14 and Everything You Ever Wanted… on June 15.

Joining them in London are already-announced headliners Turnstile, playing a UK exclusive set, along with Alex G, Knocked Loose, Danny Brown, Sunny Day Real Estate, SPEED, Superheaven, Drug Church, julie, Fleshwater, Have A Nice Life, and more across four stages.

Manchester’s line-up builds even further, with hardcore heavyweights Terror returning for their third Outbreak appearance and Big Boy making a much-anticipated UK debut. They’ll be joined by straight-edge newcomers XweaponX, metallic hardcore juggernauts Gods Hate, and rap heavyweight Denzel Curry, who returns after a standout 2023 performance. The North will also see an exclusive headline appearance from shoegaze legends Slowdive.

Additional Manchester exclusives include Deafheaven, Militarie Gun, Foxing, Sunami, Pain of Truth, Gouge Away, and UK stalwarts Impunity, Ikhras, and Splitknuckle. Rising acts such as Contention, Pest Control, No Relief, Gleemer, Mitsubishi Suicide, Jivebomb, Final Resting Place, and Stiff Meds round out a bill that spans hardcore, metal, indie, rap and beyond.

Running since 2011, Outbreak Fest has grown from a grassroots hardcore event into a must-attend for alternative music fans worldwide. With the 2025 edition expanding into London for the first time while continuing its Manchester flagship event, the festival promises to be one of the most significant moments on the UK live music calendar.

Get your tickets here.