Sunn O))) is an American drone metal band from Seattle, Washington. The band is known for blending elements of drone, ambient, black metal and doom metal in their music, creating a unique soundscape of dense, dark sounds. The group utilizes distorted guitars, bass drones, feedback, and analog synthesizers to create a sound that is both heavy yet hypnotic. Sunn O))) has collaborated with a diverse range of artists, including Earth, the Melvins, and Boris.