Billlie have officially kicked off their comeback rollout, unveiling the tracklist for their first full-length album, the collective soul and unconscious: chapter two.
The release marks a major milestone for the group, signaling a new phase in both their music and storytelling universe.
A Concept Rooted in Contrast and Transformation
On April 17, Billlie shared their “OVERTURE” tracklist image through official channels, immediately drawing attention with its symbolic visuals.
The image features a transparent tulip blooming in darkness—a striking contradiction, as tulips typically close at night. This imagery hints at the album’s central themes of:
Transformation
Duality
Emotional and personal evolution
Accompanying the visual was a cryptic message suggesting that identity is never fixed, but constantly shaped through cycles of division and fusion—a concept deeply tied to Billlie’s ongoing narrative world, often referred to as the “Billlieverse.”
A 12-Track Album Led by “ZAP”
The upcoming album will include 12 tracks, headlined by the title track “ZAP.”
Other songs on the album include:
“$ECRET no more”
“WORK”
“B’yond me”
“SOUPASTA”
“OFF-AIR”
In addition to new material, the album will feature:
Multiple remix tracks
A Korean version of “DOMINO ~ butterfly effect”, previously released in Japanese
This mix of original songs and reinterpretations suggests a carefully structured listening experience, blending continuity with experimentation.
Expanding the “Billlieverse”
This album continues the story introduced in their 2022 mini album chapter one.
While the previous release focused on the emergence of cracks within their narrative world, chapter two dives deeper—exploring what happens when those fractures are confronted rather than ignored.
The result is expected to be a more introspective and complex chapter in their storytelling.
Global Production Meets Member Creativity
The project brings together an impressive lineup of international producers and songwriters, including:
Hwaji, an award-winning Korean hip-hop artist
Jake K of ARTiffect, known for his work on multiple K-pop hits
Swedish producer Ludwig “Loui” Lindell
Songwriter Maria Marcus, with millions of album sales across Asia
At the same time, Billlie members Siyoon, Moon Sua, and Haram contributed to the songwriting process, adding a personal and authentic touch to the album.
Release Date and What to Expect
Billlie’s first full album is set to be released on:
May 6, 2026 (6 PM KST)
As their most ambitious project to date, the album is positioned as a culmination of their artistic growth since debut.
Final Thoughts
With the collective soul and unconscious: chapter two, Billlie are not just returning—they’re expanding their identity.
Combining conceptual storytelling, global production, and increasing member involvement, this comeback could solidify their position as one of K-pop’s most creatively distinctive groups.
As teaser releases continue, anticipation is only expected to grow.
