"Let 'Em Know" is a song by American rapper T.I., released on January 18, 2026 as the lead single from his upcoming twelfth studio album Kill the King. It was produced by Pharrell Williams. A "bouncy", braggadocious song, it is built around driving chords and a heavy bass.
On January 17, 2026, T.I. announced his comeback on social media with a preview of the song and its music video.
Gabriel Bras Nevares of HotNewHipHop gave a positive review, writing "It's a hard-hitting and unsurprisingly bouncy cut, which sounds a lot like some of the Atlanta rapper's best material over the decades. Maybe it won't convince you that he's still as good as ever, but you can't deny that he carries himself on the beat with a lot of charismatic energy head-bobbing flows."
"Let 'Em Know" debuted at number 83 on the Billboard Hot 100 for the week ending January 30, 2026. It has since peaked at number 36, making it T.I.'s highest charting single since 2014's "No Mediocre".