The members of Billlie would like to invite you to a private rooftop party in the city, as they continue to count down to the release of their 1st single album, 'side-B : memoirs of echo unseen'.

For this special comeback as 5-members, Billlie will be veering from the storyline of the 'Billlieverse' to tell an untold 'side-B' story. Earlier in September, the group revealed their pre-release track "BYOB (Bring Your Own Best Friend)", garnering attention for their musical transformation. 

Billlie's 1st single album 'side-B : memoirs of echo unseen', featuring the title track "DANG! (Hocus Pocus)", will be out later this month on October 23 at 6 PM KST.