Billlie‘s First Album ’The Collective Soul and Unconscious: Chapter Two' - What Makes 'ZAP' a Must-Listen?

Hanayoung Guest Reporter. | 2026.05.07

Billlie lands a jab with their new single "ZAP." From the first listen—"we knew it was our song"—the group returned with that conviction, and fans and industry watchers are eager to see how their first full-length album will perform.

On the 6th, Billlie held a media showcase for their debut full-length, the collective soul and unconscious: chapter two, at the SBS Prism Tower public hall in Mapo-gu, Seoul. The members described the record as both a conclusion to the story they've been telling and a fresh beginning. "We're honored to present our long-awaited first full album," they said, adding that working on it made them reflect on their debut.

For a long time, we looked outward for something that had been lost. But the answer was inside from the start. The Billiverse's companion mini-album series, the collective soul and unconscious, began with a single fracture. If chapter one described how that crack first appeared, chapter two is about the courage to walk into its depths. Siyun summed it up in one word: awareness. She said the album's core message is that answers come from within rather than from outside.

The new record opens with "$ECRET no more," which reinterprets a Tchaikovsky melody as trap, and moves through the title track "ZAP," a snapshot of awakening; the sub-title "WORK," which blends bass house and electro-hip-hop; "TBD," which unravels emotional ambiguity with tech house and hyperpop; "B'yond me," a search for inner light over lush Philly-soul orchestration; "SOUPASTA," which collapses genre binaries; and "OFF-AIR," a calm self-declaration layered over nu-disco.

The album also includes a Korean version of the previously released Japanese-language "DOMINO ~ butterfly effect" and several remixes. At 12 tracks total, the record builds Billlie's distinctive musical world (B-Side). Haram said the songs are the kind you turn to when you're fragile or worn out and need a boost. Suhyun added that they wanted to show the wide musical spectrum Billlie can cover; the biggest change, she said, is that they boldly tried many genres. "I hope listeners react like, 'Oh, Billlie can do this too,' and 'They can pull off this kind of music,'" she said.

The members played an active role in the album's creation. Moon Sua, along with Siyun and Haram, contributed to the songwriting and helped shape Billlie's sonic identity. Moon Sua said she felt a lot of nerves because it's their first full album, but that tension worked in their favor. "We spent time thinking about how to introduce ourselves, and overall participation across the album was high. I think that helped our color come through clearly," she said.

The title track "ZAP" uses the idea of a sparkling shock to convey a message about erasing past memories, drowning online noise and outside judgment in an instant. The song portrays the moment you block out pouring gossip and relentless external noise and return fully to the present self.

The members said they recognized "ZAP" as a Billlie song from the first listen. Suhyun recalled, "I still vividly remember hearing it for the first time. I thought, 'This is a song we can really do well.' I was excited rehearsing because I believed we'd create a stage only we could." Haruna added that she immediately pictured the performance: "It layers a stronger, more refined energy onto Billlie's existing color and let us try something new on stage."

Billlie showed confidence about their performance. Asked whether they face stereotypes or preconceptions that unsettle them, Moon Sua said they still have many sides to show the public. "We enjoy breaking our limits and taking on challenges. As we tried new things, we realized our range is broader than we expected, and I hope the public recognizes that," she said.

Siyun said she carries many inner stories and felt organizing them had to come first. "Preparing this album taught me that the answer really does lie within," she said. Moon Sua emphasized that the album's message is about finding things inside yourself; rather than shutting out outside voices, she said Billlie wants to grow by considering many opinions.

When asked what message they found for themselves through the album, Sean said the songs convey, "This side of me is me, and that side of me is me." Interpreting those lyrics made him conclude that we should love ourselves exactly as we are.

In closing, Siyun said she was deeply moved by their first full album and still couldn't quite believe it. "Although we had a long gap between activities, we used that time well and returned with stronger teamwork and skills. We prepared hard to deliver great performances, so please give us lots of interest and love," she said.

Billlie's first full-length album, the collective soul and unconscious: chapter two, was released today (the 6th) at 6 p.m. on major online music platforms. Billlie plans to begin full comeback activities with a fan showcase at 8 p.m. that evening.

▶ [Comprehensive] The moment we heard it, we knew it was our song…Billlie delivers ZAP with conviction

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