There are several acts by the name of Disturbed; 1) Disturbed is an American hard rock band from Chicago, Illinois, formed in 1994. The band includes vocalist David Draiman, bassist John Moyer, guitarist/keyboardist Dan Donegan, and drummer Mike Wengren. Former band members are vocalist Erich Awalt and bassist Steve Kmak. The band has released six studio albums, five of which have consecutively debuted at number one on the Billboard 200. Disturbed went into hiatus in October 2011