Vous ne connaissez pas encore les membres du Groupe de Progressive Metal, Dream Theater ? C'est chose faite :
You still don't know who are the members of the Progressive Metal Band, Dream Theater ? Here they are :
Chanteur / Singer 
Clavier / Keyboards
Bassiste / Bass 
Guitariste / Guitar
Batteur / Drums
Pictures taken from different web sites about DT, look at the list page.