Andrew Choi steps into the spotlight as Jinu’s singing voice, fans rally for ‘Saja Boys’ sequel |

Spotlight on a hidden lead
Andrew Choi emerged as the expressive singing voice of Jinu, leader and main vocal of the fictional group ‘Saja Boys‘ in the breakout film ‘K-pop Demon Hunters,’ drawing praise that he “was Jinu himself.” The feature’s success elevated his profile beyond producing, placing his delivery at the emotional core of key performances tied to the character’s arc. Media features and broadcast appearances have since centered on his role, crystallizing a once‑behind‑the‑scenes talent as a front-facing storyteller through song.
The path to the mic
His involvement began via a recommendation from vocal director Lee Jae, after a ‘Soda Pop’ demo led to a studio booking where he learned he’d be voicing the protagonist, tackling demanding tracks like ‘Your Idol’ and ‘Free’ immediately. Sessions in Korea were guided by overall music producer Ian Eisendrath, with line‑by‑line direction to embed character emotion into each take. Choi recalls repeating single words dozens of times to convey intent, a process that reframed singing as performance rooted in character rather than pure pitch.
A resume built for this turn
Before the film, Choi carved a career as a hitmaker and SM-affiliated vocal coach with credits across marquee acts, alongside a top‑three finish on ‘K‑pop Star Season 2.’ That background informed a “singing-as-acting” approach, which he describes as deeper and more granular than typical studio work. Commentary around Jinu underscores how the voice needed youthful charisma and layered feeling-traits his timbre delivered for the narrative.
Fan buzz and next steps
After release, social feeds filled with requests for a “Saja Boys 2nd album,” while legacy clips resurfaced and new listeners discovered his catalog. He has continued music activities, from releasing ‘Under Your Skin’ to contributing to the inZOI theme ‘Beyond the Blue,’ while remaining open to future dubbing opportunities. Ongoing interviews and features suggest momentum is building around his dual identity as producer and character vocalist, with fan curiosity fueling sustained visibility.