Dream Theater is an American progressive rock band formed in 1985 under the name Majesty by John Petrucci, John Myung and Mike Portnoy while they attended Berklee College of Music in Boston, Massachusetts. The legion of fiercely devoted Dream Theater diehards around the world expect nothing less than a smart, fully immersive, experiential journey through other worldly soundscapes from each and every live performance, full-length album, and song.

Rightfully so, given the band's three decades of continually redefining the parameters of hard rock and progressive heavy metal, overcoming obstacles, surpassing critical expectations, and resisting the incessant winds of industry uncertainty. Staying an exciting course in a sea littered with also-rans, pretenders, and opportunists, Dream Theater's body of work endures with singular triumph.

The Astonishing is undisputedly the most ambitious undertaking by a band whose cerebral compositions already define the vanguard of progressive hard rock.