"Reflektor" is a song by Canadian indie rock band Arcade Fire. It was released on September 9, 2013, as the first single from the band's fourth studio album, Reflektor (2013). Produced by James Murphy, Markus Dravs and the band itself, the song features a guest vocal appearance by David Bowie and was released on a limited edition 12" vinyl credited to the fictional band The Reflektors. Two music videos were made for the song, one regular and one interactive, both being released on the day of the song's release. "Reflektor" was met with positive reviews, with critics often complimenting its musical approach. It also came second in NME's list of best singles of 2013. The song had a positive commercial performance, charting in several countries.

The band began working on the track in 2011, with vocalist and guitarist Win Butler noting, "We recorded a little bit in Louisiana with the Haitian percussionists [Willinson Duprate and Verrieux Zile] and we kind of lived with that. It's an incredibly long process." Regular Arcade Fire collaborators Owen Pallett and Colin Stetson provided instrumental parts, alongside English musician David Bowie who provided vocals for the song. Regarding Bowie's guest appearance on the track, multi-instrumentalist Richard Reed Parry noted, "It was just after The Next Day had come out. He basically just came by the studio in New York while we were mixing, just to have a listen to the stuff we were doing. He offered to lend us his services because he really liked the song. In fact, he basically threatened us – he was like, 'If you don't hurry up and mix this song, I might just steal it from you!' So we thought, well why don't we go one better, why don't you sing on our version? Thankfully he obliged, and we were really happy about that."

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