KOREAN MCND (엠씨엔디) MCND – Bumpin’ (쾅쾅쾅) 쾅쾅쾅 kwangkwangkwang“Bumpin'”[EP] EARTH AGE2020.08.20 Lyrics/작사: Daniel Kim, 캐슬제이 (Castle J)Composer/작곡: Daniel Kim, Jiyeon Park, Simon PetrènArranger/편곡: Simon Petrèn Castle J,…