"Lust" (stylized as "LUST.") is a song by American rapper Kendrick Lamar, from his fourth studio album Damn, released on April 14, 2017. The ninth track on the album, the song was written by Lamar, DJ Dahi, Sounwave, and BadBadNotGood, and was produced by DJ Dahi, Sounwave, and BadBadNotGood. The song features guest vocals from record-producer Kaytranada, of which he is uncredited.

The song is about routine; the things we allow to interrupt them, along with romantic lust and material desire. The song's lyrics also reflect Lamar's reaction to the 2016 presidential election, specifically the anger and confusion some of the nation felt in the wake of it. Specifically, Lamar speaks about the protests against Donald Trump, including the struggle to keep the energy up and sustain the protests long-term, without getting fatigued. By the end of the song, the theme of acceptance comes into play.

The song features guest vocals from electronic musician Kaytranada, and marks the first time he has worked with Lamar.Jazz saxophonist Kamasi Washington, who played on Lamar's third studio album, To Pimp a Butterfly, assisted with the string arrangements.

Kathleen Johnston of GQ Magazine described "Lust" as the best song on Damn.

Lamar performed "Lust" live at the Coachella Valley Music and Arts Festival on April 23, 2017. He performed "Lust" seated in a cage accentuated by strings of LED lights.

The song contains a sample of Rat Boy's song "Knock Knock Knock", which first appeared on his 2015 mixtape Neighborhood Watch. When he found out about the sample, Rat Boy himself was very happy and delighted about it, tweeting his appreciation.

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