"Shut Up" is a song by Unnies, a special girl group comprising the cast members from the South Korean reality show Sister's Slam Dunk.

Written and produced by Park Jin-young, it was released by KBS Media and LOEN Entertainment on July 1, 2016.

Sister's Slam Dunk is a South Korean reality show starring Ra Mi-ran, Kim Sook, Hong Jin-kyung, Min Hyo-rin, Jessi and Tiffany that follows the cast's attempt at fulfilling their personal dreams.

[1] In order to accomplish Min Hyo-rin's dream of debuting as a member of a girl group, the cast formed a special girl group named Unnies and began working on a song produced by Park Jin-young.

Recording and choreography practice sessions for the song, later revealed to be titled "Shut Up", took place at JYP's headquarters and made up several episodes of the show.