HAAN 与 SHIRT 合作先行单曲《SINGIN' 4 YOU》，融合键盘、贝斯、合成器与弦乐编排，由 SHIRT 献声并完成混音与母带处理。 HAAN, SHIRT 앨범소개 [HS7] Pre-Release Single Credit 1. SINGIN' 4 YOU Lyrics by SHIRT Composed by HAAN, SHIRT Arranged by HAAN Drums played by HAAN Keys played by HAAN Bass played by HAAN Synthesizers played by HAAN Strings played by HAAN Background Vocals by SHIRT Mixed & Mastered by SHIRT @BLESSFOR Studio Artwork by @jngsnghun