On January 17, Big Hit Entertainment introduced the 4th TXT member Taehyun. According to netizens, Taehyun was born in the year 2002 and is the rapper of the group. Curious netizens did some more research and found out Taehyun was also once a CF model for an English tutor company 'Tun Tun English.' 

Currently, a 'Tun Tun English' ad video featuring Taehyun is receiving attention. The rookie idol was 7 years old at the time. His bubbly personality and handsome features stand out in the clip. 

You can check out baby Taehyun's adorable past in the video below.