It was released by Starship Entertainment as the third single from the group's first Korean extended play I've Mine on October 13, 2023.

On September 3, 2023, Starship Entertainment announced Ive would be releasing their second extended play I've Mine on October 13.

[5] NME emphasized that "Baddie" serves as a versatile showcase of IVE’s diverse talents, similar to the previous single's 'Kitsch' beat drop.

[4] It was described by Starship Entertainment as a 'dark charm' song led by a strong trap beat and electric bass rhythm, with lyrics conveying the message of self-confidence.

[23] In New Zealand, the song debuted at number 16 on the RMNZ Hot Singles in the chart issue dated October 23, 2023.

[31] In the second week of promotion, the group performed on three music programs: Mnet's M Countdown on October 19,[32] Show!