On January 18 at midnight KST, Big Hit Entertainment introduced the fourth TXT member, Taehyun.
The fourth member to be revealed is born in 2002 but his exact birth date is still unknown. He also reported can also speak English. He is 16 years old and 17 years old in Korean reckoning.
Check out the teaser photos and introduction video:
— BigHit Entertainment (@BigHitEnt) January 17, 2019