Arctic Monkeys are an English indie rock band formed in 2002 in High Green, a suburb of Sheffield. The band consists of Alex Turner (lead vocals, rhythm guitar), Jamie Cook (lead guitar, backing vocals in the early days), Nick O'Malley (bass, backing vocals), and Matt Helders (drums, backing vocals). Former band member Andy Nicholson (bass guitar, backing vocals) left the band in 2006 shortly after its debut album was released. They have released five studio albums: Whatever People Say I Am, That's What I'm Not (2006), Favourite Worst Nightmare(2007), Humbug (2009), Suck It and See (2011) and AM (2013), as well as one live album, At the Apollo (2008). Their debut album is the fastest-selling debut album by a band in British chart history, and in 2013, Rolling Stone ranked it the 30th greatest debut album of all time.