Machine Head is an American heavy metal band that formed in 1992 in Oakland, California. Founded by singer and guitarist Robb Flynn and bassist Adam Duce, the band has been plagued by lineup changes and drug abuse since its inception. The current lineup of the band comprises Flynn (vocals, guitar), Duce bass, Phil Demmel (guitar), and Dave McClain (drums).

Machine Head was formed by two ex-Vio-lence members after a physical confrontation between the band and a gang. Fearing for their lives, Flynn and Duce departed from Vio-lence and started writing music, forming Machine Head in 1992. Though the band's first album was a success, Machine Head had a series of albums that earned the band criticism for "sellin out". With four former members, the band nearly disbanded in 2002 after its label, Roadrunner Records, dropped them from the roster due to poor album sales and controversy. The band resigned with Roadunner soon after and have released two albums since then. In 2007, the band released The Blackening, which was named the band's "masterpiece" and earned Machine Head its first Grammy Award nomination.

Founded in 1992 by former Vio-Lence guitarist Robert Flynn and Adam Duce. The song Davidian of their debut album Burn My Eyes , features the lyrics “Let freedom ring / with a shotgun blast”. Subsequently the video was banned from MTV due to its release date being very soon after the Waco Siege which it was apparently describing. Robb Flynn has since said that the song was not written about the Waco Siege but added that line to get people thinking. After their debut album Chris Kontos left to