SOUNDGARDEN's 'Superunknown' Album Certified Six Times Platinum In U.S.

SOUNDGARDEN's breakthrough 1994 album "Superunknown" was certified six times platinum by the RIAA (Recording Industry Association of America) on April 21 for sales in excess of six million copies. The LP was previously certified five times platinum in March 1996. The RIAA developed its gold and platinum awards program in 1958 to honor artists and create a standard by which to measure the commercial success of a sound recording. The program trademarked the gold record and formalized the industry ...