It was released on March 20, 2019, by MLD Entertainment and distributed by Kakao M as the lead single from the group's fifth extended play Show Me.

To promote the single, the group performed on several South Korean music show programs, such as M Countdown and Inkigayo.

The song was written, composed and produced by Shinsadong Tiger, while Beom x Nang received writing and composition credits.

[1] Described by Tamar Herman of Billboard as a song that "jumps between melodies, throwing in jazzy brass and quirky synths over squelchy Eurodance-inspired beats.

[4] On March 14, 2019, it was announced that members Daisy and Taeha will be taking a break due to health and personal issues and not participate for the promotions of "I'm So Hot".

[11] Tássia Assis of MTV News stated the track's "brassy, over the top melody pairs well with the flashy confidence and it's the perfect score to play while taking over the stage.

"[12] Amber Miley of The Kraze Magazine described the song as "full brass and percussion", and that it was "reminiscent of old school burlesque show music.