HIEUTHUHAI is a Vietnamese rapper and producer associated with the contemporary Vietnamese hip-hop scene. Emerging in the late 2010s, he is known for blending trap and modern rap styles with influences from local urban culture. His work often features rhythmic, beat-driven production, concise flow, and lyrics that reflect personal and social themes relevant to younger Vietnamese audiences. HIEUTHUHAI has participated in collaborations and releases that situate him among a wave of Vietnamese artists bringing Western-influenced hip-hop production and vocal delivery into Vietnam's mainstream and independent music circles.