Group Monstar X is posing for a dry camera rehearsal of Mnet M Countdown' held at Sangam-dong CJ E & M Center in Mapo-gu, Seoul on the afternoon of the 15th.
About Monsta X
Monsta X is a South Korean boy group formed through the reality survival program No.Mercy by Starship Entertainment. The group is currently composed of six members: Shownu, Minhyuk, Kihyun, Hyungwon, Joohoney and I.M, with former member Wonho having left the group in October 2019.
 Wikipedia