김나영 – 마지막 약속 (원곡 : 포지션) 〈Credit〉 Composed by 김형석 Lyrics by 양재선 Arranged by 김형석, Jewerly K String by 융스트링 Piano & Keyboards by Jewelry K Guitar by 김민혁 Bass by 허은찬 Drums by KAON Vocals Mixed by 이신성 Mixed by 김정승 @ Studio 203 Mastered by 마스터키 @ 821 Sound