Red Velvet 레드벨벳 – 'Psycho X Bad Boy' ft. RBB (KPOP Mashup 2020) #1

???? Kpop Mashup 2020 of Red Velvet(레드벨벳) Psycho, Bad Boy with some snippet from RBB (Really Bad Boy)Mashup is a unique way of transforming different songs in ...