"Yellow Flicker Beat" is a song by New Zealand singer Lorde. Written by Lorde and Joel Little and produced by Little and Paul Epworth, the song was released on 29 September 2014 as the lead single from the soundtrack for The Hunger Games: Mockingjay – Part 1 by Republic Records. "Yellow Flicker Beat", which features an electronic production, is characterised as an art pop and electropop song. Its style was compared to that of Lorde's earlier releases such as her song "Biting Down" from The Love Club EP (2013) and her debut studio album, Pure Heroine (2013). The lyrics of the track refer to the rise of The Hunger Games' heroine Katniss Everdeen.

The track was well received by music critics, who praised its lyrical content for being more mature than that of Lorde's previous releases. Commercially, "Yellow Flicker Beat" peaked at number thirty-four on the US Billboard Hot 100 and entered the record charts of several nations, including Australia, Canada and New Zealand. A music video for the song was directed by Emily Kai Bock and was released on 7 November 2014. Four days later, the makeover of the song titled "Flicker (Kanye West Rework)" co-produced by Lorde and Kanye West was released. Lorde performed the song at the 2014 American Music Awards on 23 November 2014. The song was nominated for Best Original Song at the 72nd Golden Globe Awards, and Best Song at the 20th Critics' Choice Awards.

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