Halcyon Days

Halcyon Days is the reissue of English singer Ellie Goulding's second studio album, Halcyon (2012). It was released on 23 August 2013 by Polydor Records. Following the release of Halcyon, Goulding announced that she had plans to repackage the original album, with new songs that focused on electronic music. For the reissue, Goulding recorded 10 new songs and worked with a variety of producers, including Ryan Tedder, Calvin Harris and Greg Kurstin, to create her desired sound.

Upon release, Halcyon Days met generally positive receptions from music critics, who praised the album's musical expansion, its production and happier lyrical content. Commercially, the reissue charted top on New Zealand, and it helped to propel the original album on numerous charts. The lead single from the reissue, "Burn", was released on 5 July 2013, becoming Goulding's first number-one single on the UK Singles Chart. "How Long Will I Love You" and "Goodness Gracious" were subsequently released as the second and third singles from Halcyon Days, respectively. A second reissue, titled Halcyon Nights, in honour of the original album's tenth anniversary, was released on 12 October 2022.