K-Pop girl group Billlie recently dropped the comeback scheduler for the first single album, side-B: memoirs of echo unseen. According to the scheduler, they will release photo teasers, two music video teasers, and more.
[#Billlie] the first single album
[side-B : memoirs of echo unseen] | Billlendar
— Billlieofficial (@Billlieofficial) October 9, 2023
Previously, they pre-released the track “BYOB (bring your best friend),” and received much fan attention. On the other hand, the album is set to drop on October 23 at 6 PM KST.