Question: S.M. The Performance, is a dance project group, formed by S.M. Entertainment in 2012, The group consists of members of other groups of S.M., including which South Korean singer and actor, a member of the South Korean-Chinese boy group EXO and its sub unit EXO-K, better known as who?
Sentence (from "Kai (entertainer, born 1994)"): Kim Jong-in (born (1994--) 14, 1994 ), better known as Kai, is a South Korean singer and actor.
Relevant evidence: Yes