The Soundgarden CD Superunknown is an outstanding example of grunge rock music recorded in 1994 by the band and producer Michael Beinhorn. The A&M (USA) record label released this masterpiece. With Chris Cornell's grunge vocals, this CD is a must-have for rock and grunge fans who can appreciate the band's unique style. Superunknown is a 15-track album that will take you back to the days of heavy electric guitar riffs and heart-throbbing drums.