Florence and the Machine (styled as Florence + the Machine) are an English indie rock band, consisting of lead singer Florence Welch, Isabella "Machine" Summers, and a collaboration of other artists. The band's music had received praise across the media, especially from the BBC, before they gained mainstream success. Specifically, the BBC played a large part in their rise to prominence by promoting Florence and the Machine as part of BBC Introducing.

The band's debut studio album, Lungs, was released on 6 July 2009, and held the number-two position for its first five weeks on the UK Albums Chart. On 17 January 2010, the album reached the top position, after being on the chart for twenty-eight consecutive weeks. As of October 2010, the album had been in the top forty in the United Kingdom for sixty-five consecutive weeks, making it one of the best-selling albums of 2009 and 2010. The group's second studio album, Ceremonials, released in October 2011, entered the charts at number one in the UK and number six in the US.