Doyoung (도영) KOREAN NCT OST Rich Man (리치맨) Doyoung (도영) – Hard For Me Hard For Me Rich Man OST Part.5 2018.06.09 Doyoung Lyrics/작사: 전창엽, 윤진효 Composer/작곡: 윤진효, 전창엽 Arranger/편곡: 윤진효