Lou Koller, the frontman and co-founder of New York hardcore band Sick Of It All, has passed away at the age of 59 after a two-year battle with adenocarcinoma, a form of oesophageal cancer.

The band confirmed his death on July 24, 2026, in a heartfelt Instagram statement, expressing overwhelming grief and highlighting his enduring impact on the hardcore music scene.Koller was diagnosed in 2024, leading to the cancellation of a European tour for his treatment.Despite being declared cancer-free in 2025, the disease returned, and he passed away shortly after.The band praised his camaraderie, commitment, and ability to uplift fans worldwide, noting his influence extended beyond music.Tributes poured in from fans and fellow musicians, celebrating his legacy as a beloved figure in hardcore culture.

His contributions to Sick Of It All, including seminal albums like 'Blood, Sweat And No Tears' and 'Built To Last', solidified his status as a pivotal figure in New York hardcore.

The loss marks a significant moment for the band and the broader music community, with many reflecting on his enduring impact and the positive mark he left on the world.