WM Entertainment



J-US is the leader of the K-pop boy band ONF.

J-US Profile

Name제이어스 | J-US
Full Name이승준 | 李昇俊 | Lee Seungjun
ClanYongin Lee Clan
Date of BirthJanuary 13, 1995 (age 28)
HometownHaengdang-dong, Seongdong-gu, Seoul, South Korea
CitizenshipRepublic of Korea
Height174cm | 5′-09″
Shoe Size255mm
Blood TypeAB
Zodiac SignCapricorn
Military ServiceRepublic of Korea Army
December 27, 2021 – June 26, 2023
DebutONF | August 3, 2017
+2315 Days Since Debut
Sub-UnitOFF Team
PositionONF: Leader (OFF Team), Lead Dancer, Sub Vocalist
Years Active2017 – present
LabelWM Entertainment


  • Mother
  • Father
  • Oldest Sister
    • Born: 1989
  • Second Oldest Sister
    • Born: 1993


  • Hanyang Cyber University
    • Bachelor’s degree • Japanese Language
  • Kukje University of Arts
    • Musical Theatre
    • Dropped Out
  • Duksoo High School
  • Daekyeong Middle School

J-US Facts

He is a Catholic and his baptismal name is Hasang Paul.
He became a WM Entertainment trainee in 2012 and made his debut as the leader of ONF in 2017.
WM Entertainment Audition Songs: Huh Gak – Hello, Kim Bumsoo – Sadness Guide
He enrolled in Kukje University of Arts as an musical theatre major but dropped out in his freshman year.
He received his Bachelor’s degree in Japanese Language from Hanyang Cyber University.
His English name is Chris.
J-US and HYOJIN have been friends since middle school. They auditioned for WM Entertainment together.
He is a former MIXNINE contestant.


  • Artist
    • SHINee
  • Color
    • purple, black
  • Season of the Year
    • winter
  • Word
    • FUSE

Categories: K-pop Idols Born in 1995 | K-pop Idols Born in January | K-pop Idols From Seongdong | Capricorn K-pop Idols | Catholic K-pop Idols | K-pop Boy Band Leaders | Daekyeong Middle School Alumni

References: Melon TMI Battle, Star Road 05, TMI NEWS EP26, VLIVE, 10252019 MK Sports