Woot! Dream Theater. They're a band formed in the late 80's that had their only hit "ull me under" in the 90's and has since fallen of the mainstream map (thank god). Their last 3 albums (the albums of the 2000's) have all been Progressive Metal and far to heavy/long/epic for the radio. They are on both Guitar Hero and Rock Band, I'm not sure what songs though...Dream Theater pretty much pioneered Progressive Metal, and for that I love them, cuz its my favorite genre. If you haven't heard of progressive metal or Dream Theater i suggest you pick up "Train of Thought" and relish in the greatness. John Petrucci is probably the best guitarist in the world according to ability and Portnoy is a world class drummer. Oh and Myoung is pretty good at bass to (/sarcasm), the only problem with DT is Labrie the singer who is kinda annoying.