By September 1986, Cameron had gained so much notoriety in the local music scene that he was chosen to play for Soundgarden, replacing drummer Scott Sundquist. Soundgarden was made up of vocalist/guitarist Chris Cornell, guitarist Kim Thayil, and bassist Hiro Yamamoto. Cornell said, "When I first met Matt, he was already the best drummer in town ... He just seemed very confident and well-adjusted." The band signed with the independent label Sub Pop and released the "Screaming Life" EP in 1987 and the "Fopp" EP in 1988. In 1988, the band signed with legendary punk record label SST Records and released its debut full-length album "Ultramega OK". The album earned the band its first major award nomination, a Grammy Award, in 1990. The band subsequently signed with A&M Records, becoming the first grunge band to sign to a major label. In 1989, the band released its first album for a major label, "Louder Than Love". Following the release of "Louder Than Love", Yamamoto left the band to finish his master's degree in Physical Chemistry at Western Washington University. He was replaced by former Nirvana guitarist Jason Everman. Everman was fired following Soundgarden's tour supporting "Louder Than Love".