Delirium is the third studio album by English singer and songwriter Ellie Goulding, released on 6 November 2015 by Polydor Records. Music critics were generally impressed by the overall production of the record, although they were ambivalent in regards to its originality. It debuted at number three on the UK Albums Chart and the US Billboard 200, earning Goulding her highest-charting record in the latter country and her highest first-week sales figures in both territories. "On My Mind" was released as the lead single from the album on 17 September 2015.

Genre: Synthpop, dance

Release date: Nov 6, 2015

Halcyon Days is the reissue of English singer and songwriter 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 ten new songs and worked with a variety of producers, including Ryan Tedder, Calvin Harris and Greg Kurstin, to create her desired sound. Goulding and the producers created a synthpop album that takes influence from indie pop, dream pop, alternative dance and features positive lyrics in contrast to her previous releases.

Genre: Indie pop, synthpop, dream pop, alternative dance

Release date: Aug 23, 2013

Halcyon is the second studio album by English singer and songwriter Ellie Goulding, released on 5 October 2012 by Polydor Records. It was recorded between 2011 and 2012, during promotion of her debut album, Lights (2010). Goulding worked with several producers on the album, including Jim Eliot, Starsmith, Billboard, Justin Parker, MONSTA, Madeon and Mike Spencer, in addition to collaborating with artists such as Tinie Tempah and Calvin Harris.

Genre: Indie pop, synthpop, dream pop, alternative dance

Release date: Oct 5, 2012

Lights is the debut studio album by English singer and songwriter Ellie Goulding, released on 26 February 2010 by Polydor Records. Goulding collaborated with several producers on the album, including Starsmith, Fraser T Smith, Frankmusik, Richard "Biff" Stannard, Ash Howes, Liam Howe, Fred Falke and Mumford & Sons' Ben Lovett. The album received generally positive reviews from music critics, who complimented Goulding's electronic edge, while less favourable reviews felt the sound was generic. Lights debuted atop the UK Albums Chart with first-week sales of 36,854 copies. In North America, the album charted at number 21 in the United States and number 66 in Canada. It spawned four singles: "Under the Sheets", "Starry Eyed", "Guns and Horses" and "The Writer".

Genre: Indie pop, synthpop, folktronica, indietronica

Release date: Feb 26, 2010