Halcyon is the second studio album by English recording artist 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). The album sees Goulding working with several producers, including Jim Eliot, Starsmith, Billboard, Justin Parker, MONSTA, Madeon and Mike Spencer, as well as collaborations with artists such as Tinie Tempah and Calvin Harris. Halcyon received generally positive reviews from music critics, who complimented Goulding's more aggressive showcase of her voice, however, less favorable reviews felt that "the main flaw of Halcyon is that it occasionally feels a bit too much". The album debuted at number two on the UK Albums Chart, selling 33,425 copies in its first week. In January 2014, it topped the UK Albums Chart and gave Goulding her second number-one album. Halcyon also debuted at number nine on the Billboard 200 in the United States, while reaching number one in Ireland, the top five in New Zealand, the top ten in Canada, Germany and Switzerland, and the top twenty in Australia.