 It was first released on 1 December 2008 as the B-side to their second single "Dog Days Are Over".It was then later released as a digital download only single on 5 January 2009 in the United Kingdom only, after the mass praise it received during the release of "Dog Days Are Over".After being released well before "Lungs" was finally recorded and released, it was later featured on the album as its bonus track.