Monstar X IM is posing ahead of the rehearsal of Mnet M Countdown' held at CJ E & M building in Mapo-gu, Seoul on the afternoon of the 28th.
The rehearsal of M Countdown' was attended by Pink Lady, First Secret, Banner, Nature, Trey, Yukika, ETiz, On-Off, Dream Catcher, Seven-A-Clak, Girl of the Month, Ha Sung-woon, Hyomin, ITZY, SF9 and others.