Anonymous Artists; Musician Society ARTIST. Joyce Yoo | Let’s be a butter [CREDIT] 01. Happy Butter Lyrics by Joyce Yoo (조이스유) Composed by Joyce Yoo (조이스유), Jgrow Arranged by Jgrow Mixed by FYVE Mastered by FYVE 02. Outside Lyrics by Joyce Yoo (조이스유) Composed by Joyce Yoo (조이스유), Seo Mary Arranged by Seo Mary Mixed by FYVE, Jgrow Mastered by Headbang 03. Cozy Lyrics by Joyce Yoo (조이스유) Composed by Joyce Yoo (조이스유), Wavytrbl Arranged by Wavytrbl Mixed by FYVE, Jgrow Mastered by Headbang Project Director HammonD (김동현) Presented by UDCY