Dream Theater
American progressive metal band

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 Portnoy continues to play with the band today. After a brief stint with Chris Collins, followed by Charlie Dominici (who was dismissed from Dream Theater shortly after the release of their 1989 debut album When Dream and Day Unite), LaBrie was hired as the band's singer in 1991. Dream Theater's original keyboardist, Kevin Moore, left the band after three albums and was replaced by Derek Sherinian in 1995 after a period of touring. They recorded one album (and an EP) with Sherinian, who was replaced by current keyboardist Jordan Rudess in 1999. Portnoy left the band in 2010 to pursue other musical interests, and was replaced by Mike Mangini; he rejoined the band in October 2023.
Dream Theater has released sixteen studio albums.
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This entry incorporates text from “Dream Theater” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.