Heiakim, Arash Buana, and HNATA release their first-ever collaboration, “underwear,” born from simply hanging out together and taking turns on the microphone.
Indonesian artists Heiakim, Arash Buana, and HNATA team up for the first time on their new single, “underwear.” Although the three have been friends for years, this release marks their first official collaboration.

Instead of carefully planning every detail, the trio let the song come together naturally. They spent time hanging out, exchanging ideas, and taking turns on the microphone. As a result, “underwear” captures a genuine creative moment. At the same time, each artist brings their own personality and perspective to the track.
Rather than following a strict formula, they allowed the music to evolve on its own. Consequently, the song feels honest, personal, and true to each artist’s style.
A Collaboration Built on Friendship
Created during a single writing session, “underwear” reflects the artists’ thoughts and emotions as they unfolded in real time. Furthermore, the track showcases the natural chemistry between the three musicians.
Instead of overshadowing one another, Heiakim, Arash Buana, and HNATA each contribute something unique. Together, they create a sound that feels balanced, cohesive, and effortless.
Musically, “underwear” blends alt-pop rock and indie pop with subtle rap influences. Meanwhile, warm instrumentation and conversational vocals give the song a relaxed and intimate atmosphere. The production remains simple yet effective, allowing the emotions behind the track to take center stage.
Beneath its laid-back sound, however, the song explores deeper themes. The lyrics touch on overthinking, emotional distance, and quiet burnout. In addition, the track captures the experience of moving through life on autopilot while trying to make sense of everyday struggles. Rather than offering simple solutions, the song embraces the reality of feeling “just ok.”
Ultimately, through friendship, trust, and creative freedom, Heiakim, Arash Buana, and HNATA have crafted a song that feels both refreshing and relatable. As their first collaboration, “underwear” not only showcases their individual strengths but also demonstrates how naturally their styles come together.
