"24K Magic" (pronounced "twenty-four karat magic") is a song by American singer and songwriter Bruno Mars. It serves as the lead single from his third studio album of the same name, and was released on October 7, 2016 for digital download and streaming by Atlantic Records. It was provided as an instant grant track for those who pre-ordered 24K Magic. "24K Magic" was written by Bruno Mars, Christopher "Brody" Brown and Philip Lawrence, while production was handled by the latter three, as Shampoo Press & Curl (formerly The Smeezingtons) and additional production by The Stereotypes.

"24K Magic" is a "synth-heavy" funk, disco and contemporary R&B song.

After the commercial success of his second studio album, Unorthodox Jukebox (2012), Mars performed his first Super Bowl halftime show (Super Bowl XLVIII) as headliner with the Red Hot Chili Peppers as special guests, and it became the second-most-watched halftime show in the history of the Super Bowl, as of 2016. Later, in September 2014, Mars tweeted "Now it's time to start writing chapter 3", hinting that he was recording new music.Mark Ronson also released the single "Uptown Funk" in 2014 with Mars' vocals, which was met with chart success. This resulted in the artist heading to the studio to record more without having plans to release a new album, stating "Until it's done". In early 2016, the singer performed, once more, at the Super Bowl 50 halftime show with Beyoncé, both credited as guests, and British band Coldplay headlining. The album was due in March, but the Super Bowl halftime show postponed it several months. At that time seven songs have already been recorded. On October 3, 2016, the song title was revealed through Instagram, upon the upload of nine photos. These pictures were combined and the final image revealed the singer looking down while wearing a white hat with "XXIV k" inscribed. Mars wrote, "You can call it my first single, but I call it the invitation to the party."

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