'Wynn' 4th Single Album [IF I] 너와 함께 있는 지금 이 겨울밤은. -Credits- Produced by Wynn Lyrics by Wynn Composed by Wynn Arranged by Wynn & Sunkiss Drums by Wynn Piano by Sunkiss Organ by Wynn Bass by David Chan Guitar by 류현우 Chorus by Wynn Mixed by 김대영 @ PLEDIS STUDIO Mastered by 권남우 @ 821 SOUND MASTERING Artwork by 채서현