Disturbed is an American rock band from Chicago, Illinois. The band formed in 1996 when musicians Dan Donegan, Steve "Fuzz" Kmak, and Mike Wengren hired David Draiman as their singer. Since the band's formation, they have sold over 13 million albums worldwide, making them one of the largest grossing metal/rock bands in recent years. The band has released five studio albums, four of which have consecutively debuted at number-one on the Billboard 200. The band went into an indefinite hiatus in October 2011.