The Lungs Tour was the first major headlining concert tour by English indie rock band Florence and the Machine, in support of their debut album, Lungs. In July 2009, upon the release of their debut album, Florence and the Machine announced a six-date concert tour of the United Kingdom. Six soon became nine as three more dates were added. Following the success of the UK tour, with most tickets selling out, mainland European dates were added in countries such as the Netherlands and Italy, where the album also achieved moderate success. The tour is also going to North America and a one-off show in Tokyo. In an interview with Nick Grimshaw, Florence mentioned that her tour was going to be brought to Australia. They also supported U2 on their U2 360° Tour in 2011. After the continued success of Lungs and its new UK chart peak of number 1, Florence Welch announced another nine-date UK and Ireland tour, entitled 'The Cosmic Love Tour'. Florence and The Machine's official website held an exclusive fan pre-sale event on 27 January 2010 and tickets were fully released on Friday, 29 January at 9 a.m. All tickets, for all dates officially sold out.

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).