Dinosaur Jr. is an American rock band formed in Amherst, Massachusetts, in 1984. The band was founded by J Mascis (guitar, vocals, primary songwriter), Lou Barlow (bass, vocals), and Murph (drums). After three albums on independent labels, the band earned a reputation as one of the formative influences on American alternative rock. Creative tension led to Mascis firing Barlow, who later formed Sebadoh and Folk Implosion. His replacement, Mike Johnson, came aboard for three major-label albums. Murph eventually quit, with... [more on Wikipedia]