sunn O))) is an American drone metal band known for their heavy, immersive soundscapes that blend drone, doom metal, sludge metal, and dark ambient elements. Formed in 1998, the band is renowned for their slow, crushing riffs and atmospheric compositions that create a unique and intense listening experience. With their signature use of heavily distorted guitars and deep, resonant tones, sunn O))) crafts music that is both powerful and meditative, appealing to fans of experimental and extreme metal. Their live performances are particularly notable for their sheer volume and hypnotic intensity, making them a must-see for those who appreciate the heavier side of music.