Take a Picture / Poppin' Shakin'

In February 2021, the group announced the release of a double A-side single "Take a Picture / Poppin' Shakin'".

Park, Sim Eunjee, Tim Tan, Mayu Wakisaka, and Ciara Muscat, and arranged by Trippy.

[4] "Poppin' Shakin'" was written by Safari Natsukawa, and composed by Ollipop, Hayley Aitken, and Woo Min Lee "collapsedone", the latter of whom also arranged the track.

[5] "Take a Picture / Poppin' Shakin'" was released as a CD and digital single on April 7, 2021, through JYP Entertainment and Epic Records Japan.

[6] "Take a Picture" / "Poppin' Shakin'" took the number one spot on the first day of its release on the Oricon Daily Singles Chart, selling 23,277 units.