Hellow guys, Welcome to my website, and you are watching KNOCK - 이채연 [뮤직뱅크/Music Bank] | KBS 230428 방송. and this vIdeo is uploaded by KBS Kpop at 2023-04-28T02:15:11-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.