효린(HYOLYN) - 이게 사랑이지 뭐야 (feat. Paul Blanco) 친구였다 아무렇지 않았는데 좋아져버렸다 니가 이게 사랑이지 뭐야 [Credit] Executive Produced by JOO HEESUN, HYOLYN Executive Directed by HAYULL Creative Directed by Jonghyeok Choi, Ma Jiyun Lyrics by HYOLYN, Paul Blanco, Czaer, riskypizza Composed by Czaer, riskypizza, haechi, thesecret, HYOLYN, Paul Blanco Arranged by Czaer, haechi Recorded by 장민 @ M Creative Sound Digital Edited by 장민 @ M Creative Sound Mixed by Stay Tuned @ Stay Tuned Studio Mastered by 권남우 @ 821 Sound Mastering