- Name: Jeong Taekhyeon (정택현)
- Nickname: Song Joong-Ki, Taekhyeon-Boni, Taxi, Delivery.
- Birthdate July 28, 2003
- Birthplace: Gunpo, Gyeonggi-do, South Korea
- Blood Type: B
- Height: 178cm
- Weight: 66kg
- Education: Kumjung Middle School
- 1THE9 (2019–2020)
-  Under Nineteen
- He placed fifth in the final round of Under Nineteen.