Doublast is the second extended play by South Korean girl group Kep1er.

The EP was released by WakeOne on June 20, 2022, and contains five tracks, including the lead single "Up!".

[4] Three days later, the highlight medley teaser video was released.

[6][7] Doublast consists of five tracks and incorporates various genres of funk, house, minimal pop, moombahton, dance pop, and contemporary R&B.

[8] Following the release of Doublast, Kep1er held a live showcase on the same date to introduce the extended play where they performed "Up!".