DIA Jung Chae-yeon is going to work to attend the KBS 2TV Music Bank' rehearsal at the KBS New Hall in Yeongdeungpo-gu, Seoul on the morning of the 19th.
About Jung Chae-yeon
Jung Chae-yeon, known mononymously as Chaeyeon, is a South Korean singer and actress signed under MBK Entertainment. She is best known for being a member of the South Korean girl group DIA, and for finishing 7th in the survival show Produce 101, making her a member of I.O.I.
 Wikipedia