이샤인 ‘IF’ 발표 [Credit] Lyrics : 이샤인(E SHINE), HAKO, HUI Executive Producer: 이샤인(E SHINE) Producer: 이샤인(E SHINE) Recording Engineer: 이샤인(E SHINE)  Mixing Engineer: 이샤인(E SHINE)  Mastering Engineer: 이샤인(E SHINE) Artwork: rvvo