Lungs is the debut studio album by English indie rock band Florence and the Machine, released on 3 July 2009 by Island Records. After working on various projects, Florence Welch formed a band which included Robert Ackroyd, Chris Hayden, Mark Saunders, Tom Monger, and former collaborator Isabella Summers. The album features production from James Ford, Paul Epworth, Stephen Mackey, Eg White and Charlie Hugall, with additional production by band member Isabella Summers. The album has been reissued several times: an expanded version titled Between Two Lungs (2010), a digital EP subtitled The B-Sides (2011), and a Tenth Anniversary Edition (2019).

Florence and the Machine are an English indie rock band that formed in London in 2007, consisting of lead vocalist Florence Welch, keyboardist Isabella Summers, guitarist Rob Ackroyd, harpist Tom Monger, and a collaboration of other musicians. The band's music has received acclaim across the media, especially from the BBC, which played a large part in their rise to prominence by promoting Florence and the Machine as part of BBC Music Introducing. At the 2009 Brit Awards they received the Brit Awards "Critics' Choice" award. The band's music is renowned for its dramatic, eccentric production and Welch's powerful vocals.