Scott Kelly is one of three founding members of Oakland, California, United States experimental metal band Neurosis. Has been writing and publishing music since 1985 with Neurosis, Tribes Of Neurot, Blood and Time and his solo acoustic project. He has contributed guest vocals on three Mastodon recordings, Aqua Dementia from the album Leviathan (2004), Crystal Skull, from Blood Mountain (2006) and the title-track off Crack the Skye (2009).