Kai of group EXO debuts to Solo after 8 years of debut
According to Kai's agency SM Entertainment, Kai is preparing for the Solo album; the schedule is not set and will be released later as determined.
Kai became the fifth Solo runner in the team after Chen, Baek Hyun, Suho and Ray.
About EXO
Exo is a South Korean-Chinese boy band based in Seoul that was formed by SM Entertainment in 2011 and debuted in 2012. The group consists of nine members: Xiumin, Suho, Lay, Baekhyun, Chen, Chanyeol, D.O., Kai and Sehun.
 Wikipedia