Dream Theater is an American progressive metal band from Long Island, New York formed in 1985 under the name "Majesty" by John Myung, John Petrucci, and Mike Portnoy while they attended Berklee College of Music in Boston, Massachusetts, United States, which they all dropped out of to support the band. Though a number of lineup changes followed, the three original members remain today along with James LaBrie and Jordan Rudess. Dream Theater has become one of the most successful progressive metal bands since the height of the genre in the mid-1970s. Although the band has had a few successful hits (notably Pull Me Under in the early 1990s, which received extensive MTV rotation), they have mostly stayed underground for their career, feeding off support from their fans. Dream Theater's (commonly abbreviated 'DT') two highest selling albums are the gold selling Images and Words (1992), although it reached only #61 on the Billboard 200 charts, and
Álbumes
| 1 | Our New World | The Astonishing |
| 2 | These Walls | Octavarium |
| 3 | Octavarium | Octavarium |
| 4 | Learning to live | Images and Words |
| 5 | The Answer | The Astonishing |
| 6 | Endless Sacrifice | Train of Throught |
| 7 | Orion | Master Of Puppets (Official Bootleg) |
| 8 | A Better Life | The Astonishing |
| 9 | The Walking Shadow | The Astonishing |
| 10 | Brother, Can You Hear Me? | The Astonishing |
| 11 | The Hovering Sojourn | The Astonishing |
| 12 | Strange Deja Vu | Scenes from a Memory |
| 13 | Outcry | A Dramatic Turn Of Events |
| 14 | The X Aspect | The Astonishing |
| 15 | Breaking All Illusions | A Dramatic Turn Of Events |
| 16 | Perfect Stranger | A Change of Seasons |
| 17 | Heaven's Cove | The Astonishing |
| 18 | Metropolis (Part 1) "The miracle and the sleeper" | Images and Words |
| 19 | Scene Seven: The Dance Of Eternity | Scenes from a Memory |
| 20 | The Road To Revolution | The Astonishing |