Arctic Monkeys are an alternative rock band formed in Sheffield, England, United Kingdom in 2002 after meeting at Stocksbridge High School. The band consists of Alex Turner (vocals, guitar), Jamie 'Cookie' Cook (guitar), Nick O'Malley (bass) and Matt Helders (drums, vocals). Founding bassist Andy Nicholson left in 2006. Each of the band's first five singles I Bet You Look Good on the Dancefloor, When the Sun Goes Down, Leave Before the Lights Come On...