Lovelyz Ryu Su-jeong is attending KBS2 Music Bank' rearsal at the public hall of KBS New Building in Yeouido, Seoul on the morning of the 14th.
About Music Bank
Music Bank is a South Korean music program which airs every Friday at 17:00 KST on KBS2. As of 2015, the show is also broadcast in more than a hundred countries through KBS World.
 Wikipedia