It was released by Starship Entertainment on February 3, 2025, and contains six tracks, including two singles "Rebel Heart" and "Attitude".

[2] A day later, during Ive's performance at the 2024 SBS Gayo Daejeon, a short audio clip of the single was unveiled.

[4] The following day, as a response to the Jeju Air Flight 2216 crash, Starship announced that the release of promotional material for the EP would be postponed to later dates.

[12] The EP's track listing was unveiled a day later, with the second single announced as "Attitude".

[13] A concept film for "Attitude" was released on January 26, presenting the members in a room resembling a typical home with unusual situations, while a piece of oldie music plays in the foreground.