He was born on June 14, 1994 in Seoul, South Korea.
In January 2016, he participated in an OST for the drama The Merchant: Gaekju 2015, with the song "Because Of You".
In April 2016, TAEIL officially debuted as a member of NCT, in the unit NCT U with the single "WITHOUT YOU". In July, he was announced to be a member of the 2nd unit, NCT 127. He enjoys listening to Migos.
- 2016: "Because Of You" (단 한 사람) [The Merchant: Gaekju 2015 OST]
- 2017: "Stay in my Life" (with TAEYONG & DOYOUNG) [School 2017 OST]
- 2018: "Radio Romance" (with DOYOUNG) [Radio Romance OST]
As a featured artist Edit
- 2016: "Sound of Your Heart" (너의 목소리) (with YESUNG, SUNNY, LUNA, SEULGI, WENDY, DOYOUNG)
- 2019: "Purple" (with Sohlhee)
Main article: TAEIL/Gallery
- Favorite Artists: SHINee, Migos Kim Bum-soo
- Favorite Movies: Lump of Sugar, Masquerade
- Favorite Food: Pork belly, ice cream, pizza, chicken, meat
- Favourite Colour: Black
- Favourite Number: 1
- Hobbies: Listening to music, watching movies
- He can play the guitar.
- He is currently the oldest member in NCT.
- He was cast into SM Entertainment in 2013.
- He looks up to Kyuhyun from Super Junior.
- He is one of the shortest members in NCT.