Wellwater Conspiracy was created from the remains of Hater, a grunge-era side project with Matt Cameron (Soundgarden, Pearl Jam, etc), John McBain (Monster Magnet), Ben Shepherd (Soundgarden), and Brian Wood (the brother of the late Andrew Wood of Mother Love Bone fame). After the Hater album, Cameron, Shepherd, and McBain went on to create Wellwater Conspiracy. Since then, it has been primarily composed of McBain and Cameron, with Shepherd making some appearances on recordings. Various other artists have contributed to albums, including Eddie Vedder, and Kim Thayil.

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