헤어진 연인에 대한 그리움을 'FINE DAY'라는 제목에 역설적으로 풀어낸 곡입니다. Lyrics by MosPick, 우석 Composed by MosPick Arranged by MosPick Chorus by 정영은 Trumpet by 김정근 E.Bass by 김명규 Guitar by Ferdy Piano by 손영진, JayJay Synth bass by 예아나이스 Mixed by MosPick Mastered by 권남우 (at 821 Sound)