J.bin Digital Single "어제에게" 좋았던 날들 나빴던 날들 그 모든 어제들이 모여 오늘이 되었다. -Credit- <어제에게> Lyrics by J.bin Composed by J.bin, CityBo¥ Arranged by CityBo¥ Mixed by Jaeha Seo Mastered by Jaeha Seo Executive Producer : J.bin