South Korean singer also known as Kang Tae Hyun who was announced as a member of TXT, the second boy's band to be released by Big Hit Entertainment since BTS.
He studied at Seoul Hakdong Elementary School.
When he was younger, he used to make English-language education videos for kids and was in advertisements for English-learning companies.
He has a sister.
Choi Soobin and Choi Yeon Jun are his fellow TXT band members.