Friday, June 12, 2026, 12:00 a.m. That's the exact moment five women  Daniella Tumiwa, Beverly Suryadinata, Tiffany Idanawang, Kyka Amara, and Quilla Maleeka  go from "trainees" to "artists" on every streaming platform in Indonesia. 

At a Glance

• Group name: MARBLES (5 members)
• Debut single: "HOMPIMPA"
• Debut date: June 12, 2026
• Debut date: June 12, 2026
• Agency: A-List Entertainment (their first-ever act)

MARBLES is a five-member Indonesian girl group debuting on June 12, 2026, with their first single "HOMPIMPA," released under A-List Entertainment in collaboration with Trinity Entertainment Network. The members were scouted across major Indonesian cities through an open-ended search with no fixed deadline, then trained for around three years in vocals, dance, and media handling  a K-pop-style trainee system applied to a local act.

What Makes MARBLES Different From Other Indonesian Girl Groups?

Most girl group launches lean on spectacle  big choreography reveals, mysterious countdowns, a "concept film" with cinematic lighting. MARBLES is doing the opposite. Their tagline is blunt: "Your daily dopamine reminder, celebrating every small win positively." 

That's not just branding copy. A management representative described the goal as building a sense of closeness, with MARBLES meant to feel like a friend accompanying fans through small daily moments. Instead of one big origin story, the group's content is built from small, recognizable slices of everyday life  the kind of low-key relatable energy that does well on TikTok For You pages, not just music charts.

The choice of song title backs this up. "HOMPIMPA" is the chant Indonesian kids shout before a round of rock-paper-scissors-style elimination games  a word every Indonesian recognizes instantly, but one that's never been the title of a major pop debut single before. It signals MARBLES wants to ground a modern pop package in something distinctly local. 

Who Is Behind MARBLES ?

This is where the project gets industry weight. MARBLES is the result of a collaboration between Trinity Optima Production, KVIBES, and Surya Citra Media (SCM)  meaning one of Indonesia's largest media networks has direct skin in the game. MARBLES is also the first artist introduced under A-List Entertainment, so this debut effectively launches the label itself, not just the group. 

The pre-debut rollout followed a familiar idol-industry playbook: individual concept photos first, then a group teaser, then the date reveal. The official announcement came via the group's Instagram account, @marbles.sphere, on Monday, June 8, alongside the first teaser for "HOMPIMPA." which is part of how the hype has reached non-K-pop audiences. 

How Long Did the Members Train Before Debut ?

The scouting process itself was open-ended no fixed timeline run jointly by Trinity Entertainment Network and A-List Entertainment across several major Indonesian cities. Once selected, the five members spent close to three years as trainees, working on vocals, dance, and public communication training before being cleared to debut. That's a longer runway than most local pop acts get  closer to the timeline you'd see for a mid-tier K-pop group than a typical Indonesian band launch. 

What Comes Next for MARBLES?

"HOMPIMPA" drops simultaneously across major digital platforms on June 12. For the group, this isn't just a song release  it's framed internally as the formal start of their professional career, the moment the brand and concept they've been building actually has to perform in front of an audience. Whether "your daily dopamine reminder" resonates beyond the existing fanbase will likely become clear within the first 48 hours, based on streaming numbers and how far the visuals travel on TikTok.