Dream Theater is an American progressive metal band formed in 1985 in Boston, Massachusetts. The band comprises John Petrucci (guitar), John Myung (bass), Mike Portnoy (drums), James LaBrie (vocals), and Jordan Rudess (keyboards). Dream Theater was formed under the name Majesty by Petrucci, Myung and Portnoy—all from Long Island, New York—while they attended Berklee College of Music. They dropped out to concentrate on the band. Dream Theater has undergone various lineup changes, though Petrucci and Myung have remained constant and... [more on Wikipedia]