Seoul-based artist iiso has released her new single, “Best Friend,” on May 29, marking a notable collaboration with Grammy-winning producer Mura Masa. The track captures the emotions of having a crush on a close friend, blending playful melodies with emotional vulnerability.

Listen to iiso’s “Best Friend” here.

Featuring an addictive hook and hard-hitting drum arrangements, “Best Friend” highlights the UK-inspired sonic direction that iiso has been exploring in her recent work.

While the song initially comes across as a lighthearted confession, it also reveals the subtle anxieties and emotional complexity that often accompany unrequited love. Beneath its bright and charming sound lies a sense of longing and uncertainty, adding depth to the track’s upbeat energy.

The song’s mix was handled by Humming Urban Stereo (HUS), whose signature dreamy and multidimensional sound further enhances the track’s atmosphere.

The accompanying music video reunites iiso with director Lafic, who previously collaborated with the artist on her single “Salad Days.” Through his refined visual approach, the video amplifies iiso’s distinctive aesthetic and unique artistic identity.

Based in Seoul, iiso has built her creative world by treating music, fashion, and visual art as one interconnected language. Known for her dreamy vocals, polished melodies, and modern reinterpretation of Y2K and alternative influences, she has cultivated a style that feels both nostalgic and contemporary.

As a singer-songwriter, producer, and creative director, iiso personally oversees much of her work, producing her music while also directing the visuals, styling, and artwork surrounding her releases. This hands-on approach has helped establish a strong and recognizable artistic identity.

Positioned between Korea’s underground music scene and global internet culture, iiso continues to blur creative boundaries and is emerging as one of the most exciting next-generation artists to watch.

Follow iiso on Instagram, Spotify, YouTube, and Apple Music for updates on her latest releases and upcoming projects.