India, July 25 -- Lou Koller, frontman of the hardcore band Sick of It All, has died after battling adenocarcinoma cancer. He was 59.

In June 2024, Koller had shared with fans that doctors found a tumor in his esophagus that had spread into his stomach and that he would need to pause touring for treatment.

The band announced his passing on Friday through a social media post, which read, "It's with unbelievable sadness that we announce to our worldwide hardcore family the passing of our brother Lou Koller. The level of loss that we feel at this time is overwhelming." The band noted that this year would have marked Sick of It All's 40th anniversary together.

His bandmates praised his "camaraderie, commitment and enthusiasm" that stayed "...