Disturbed is an American heavy metal band formed in 1994 in Chicago, Illinois. The band, consisting of notable members like vocalist David Draiman, guitarist Dan Donegan, drummer Mike Wengren, and bassist John Moyer, is known for its hard-hitting, aggressive sound, often accentuated by Draiman's distinctive, guttural vocal style. They have significantly influenced the nu metal and hard rock genres, with influential works such as "The Sickness" (2000), which includes the hit single "Down with the Sickness". Disturbed's music often explores themes of anger, dissatisfaction, and psychological struggles, contributing to their reputation as a leading band in the heavy metal genre.