Un2verse (pronounced "universe") is the debut extended play by Korean American rapper and singer Jessi.

[3] A day later, she explained the reason behind the EP name as "the universe is everything, all existing matter, space, and time.

[5][6] The EP was digitally released on July 13, 2017, through several music portals, including MelOn in South Korea, and iTunes and Spotify for the global market.

[10] The rapper held her first comeback stage on Mnet's M Countdown on July 13, 2017, performing the song "Gucci".

The song name was changed to "Why" (Hangul: 굳이; RR: gud-i), in order to avoid copyright infringement on broadcast television.

[20] The EP placed at number 64 on the Gaon Album Chart for the month of July 2017, with 1,091 physical copies sold.