SUNN O))) was created in 1998 by Stephen O'Malley and Greg Anderson. Their collaboration and direction continues to exist through expanded constellations and various forms. SUNN O))) produce explorations in drone, psychedelic and experimental minimalism/maximalism as well as fusions with such underground metal cultures as black, death and doom metal. SUNN O)))'s emphasis on collaborative practice sees them working with of artists from different traditions, performing with experimental composers and sound artists, as well as musicians deeply rooted in underground music, sound and art cultures.