"The Days" is a song by Swedish DJ and music producer Avicii, featuring uncredited vocals by English recording artist Robbie Williams. The song was written by Brandon Flowers, Salem Al Fakir, Avicii and Vincent Pontare, was produced by Avicii, Fakir and Pontare. The song was played for the first time in Boston, featuring uncredited vocals by Fakir. The song was released worldwide on 3 October 2014. It was released alongside "The Nights" in The Days / Nights. A planned release in the United Kingdom on 23 November 2014 was cancelled.