From YouTube:
Matt Cameron first gained fame as the drummer for Seattle-based rock band Soundgarden, which he joined in 1986. He appeared on each of the band's studio albums until its break-up in 1997.

In 1998, Cameron was invited to join Pearl Jam and then became a permanent member of the band. In 2010, Cameron became simultaneously a member of Pearl Jam and the reunited Soundgarden.

He remained with Soundgarden until its disbandment after the death of lead singer Chris Cornell in 2017. Additionally, Cameron was a member of Temple of the Dog (with fellow Soundgarden and Pearl Jam bandmates)