Mnet M Countdown camera rehearsal was held at CJ E & M Center in Sangam-dong, Seoul on the afternoon of the 1st.
Girl group IZ*ONE Miyawaki Sakura - Jang Won-young attends M Countdown camera rehearsals.
About Jang Won-young
Jang Won-young, known mononymously as Wonyoung, is a South Korean singer and model. She is a member of Ive under Starship Entertainment and is also a former member of project girl group Iz*One after finishing first in Mnet's girl group survival reality television show Produce 48.
 Wikipedia