Exo-M is a six member Chinese boy band created S.M. Entertainment in 2012. Their name is taken derivated from exoplanets, which are celestial objects outside of the Solar System.
While none of the music they produce is in Korean, they are considered a "Kpop group" because of their management by S.M. Entertainment and the fact that most of their members are able to speak some Korean (Members Chen and Xiumin are Korean).
Members:
Kris (leader)
Xiumin
Lu Han
Lay
Chen
Tao (maknae)
he's born in 1990, he's currently 23. Korean age 24.