Fightstar are a British rock band from London that formed in 2003. The band is composed of lead vocalist, guitarist and keyboardist Charlie Simpson, guitarist and co-vocalist Alex Westaway, bassist Dan Haigh and drummer Omar Abidi. Generally considered a post-hardcore band, Fightstar are known to incorporate metal, alternative rock and other genres into their sound. During the band's early days, they were viewed sceptically by critics because of Simpson's former pop career with Busted.

On 11 August 2008 Fightstar released the B-sides album Alternate Endings, with live radio sessions, covers and a previously-unreleased track. When Gut Records went into administration at the end of 2008 the band decided to release their next album, Be Human, in a joint venture with their management company (Raw Power) on the Search and Destroy label. The album was distributed by PIAS Records. Fightstar released their first single from Be Human, "The English Way", on 3 November 2008 and it topped the UK rock chart. Its video was played on Kerrang! and Scuzz T.V., and topped the MTV2 top 10. The album was co-produced by the band and Carl Bown at Treehouse Studios, Bown's Chesterfield studio. In interviews before its release, Fightstar called the new album "quite different" from their previous releases; Charlie Simpson said that they wanted to experiment with a "rock opera" sound, including strings and a choir. Simpson said that although it might be different, it would still be a Fightstar album with their trademark dark, heavy elements. The band supported Feeder for the first part of their UK tour, which began on 21 October 2008. Drummer Jason Bowld of the British metal band Pitchshifter filled in for Omar Abidi on their UK tour while Abidi recovered from a broken wrist; Abidi returned to touring with the band in early 2009. Due to the drummer's injury, Simpson played drums on six tracks of the new album while Abidi wrote the drum parts and oversaw Simpson's playing.  On 4 February 2009, Fightstar announced a 12-date UK tour supported by In Case of Fire and Laruso. Two weeks before the release of Be Human, "Mercury Summer" was released as the next single; its video debuted on the band's MySpace page on 25 February. "Mercury Summer" was well-received, reaching the A List of the Radio 1 Playlist; the band was featured on the BBC2 music show, Sound. "Mercury Summer" was added to the daytime playlist at XFM Radio and picked as Ian Camfield's Record of the Week. Emma Scott and Kerrang Radio also made "Mercury Summer" her Record of the Week. Be Human was released on 20 April 2009, reaching the highest chart peak of any Fightstar album: number 20 on the UK Albums Chart.  The band introduced "A City on Fire" during Fearne Cotton's Radio 1 show on 19 October; its video, directed by Sitcom Soldiers, premiered on 24 October. The single was released as a digital download on 20 December and peaked at numbers four and ten on the UK Rock and Indie charts, respectively. Fightstar released a deluxe edition of Be Human on 1 March 2010 with five new tracks, including "A City on Fire" and a live cover of Jordin Sparks' "Battlefield" on the iTunes edition.

how many did they sell?