24K announced on their official fan page, "
First we would like to announce a new addition to the 24K lineup.
His name is Kiyong, and he will be promoting with the team for the upcoming 8th mini album.
Kiyong is preparing very hard to add new energy as a fresh face to the roster,
so please welcome him as one of our own."
The group also announced Kisoo's upcoming military service as well as a special track just for fans, stating, "
Kisoo, who has worked very hard as member and a family to 24U,
will be enlisting in the army. In accordance to the Korean law,
all Korean citizens (male) must serve time in arms at his age.
It was an unfortunate short notice and a surprise to us all,
but Kisoo has decided to fulfill his mandatory military service with diligence and courage.
Good news for the fans, Kisoohas participated in the making of our upcoming project with his special solo track for the fans (24U)."
Good luck to Kisoo, and stay tuned for updates on Kiyong!