Disturbed is a band from Chicago, Illinois. It was formed in 1996 when musicians Dan Donegan, Steve "Fuzz" Kmak, and Mike Wengren hired singer David Draiman in Chicago, Illinois. Disturbed was originally founded as a Nu Metal band, but are now regarded as Hard Rock, or Heavy Metal. 
In its early years, Disturbed recorded two separate demo EPs which it then sent out to different record companies. The band sent two to show the record companies that it was dedicated to its music and that the first EP wasn't a fluke. The band broke out in 1999 with its single "Stupify" and subsequent album The Sickness. The album launched the band into stardom. It also released a completely revamped cover version of "Stone Cold" Steve Austin's theme music for the WWE/(WWF at the time), called "Glass Shatters." After participating in Ozzy Osbourne's Ozzfest tour in 2001, the band started the Music as a Weapon Tour.
In September 2002, Disturbed's second album Believe debuted at #1, and in 2003, the band participated again in the Ozzfest tour.
Kmak, A.K.A "Fuzz" left the band in early 2003; as singer David Draiman puts it "when Kmak was in the band, Disturbed wasn't totally clicking — personally or musically". The band tells fans that he left for personal reasons. He was replaced with John Moyer.
The group recently toured with 10 Years and Ill Niño in support of its third album Ten Thousand Fists, released worldwide on September 20th, 2005. It debuted at #1 in the U.S. In addition to Ten Thousand Fists the band has released the tracks Hell and Monster, although Monster is currently available to the public because it comes as a bonus track with the Ten Thousand Fists album tour edition. Hell is currently streamed on the band's MySpace website. Both of these songs are in high demand and illustrate the band's extremely loyal fan base. In the future, the band is considering creating a "B-side" compilation including those two tracks as well as others. There was a European tour scheduled which has been moved twice due to David Draiman having troubles with his voice.