Acting
Lee Seungjoon
January 13 1995- Place of birth: Seoul, South Korea
- Gender: Male
- Also known as: J-US, 제이어스, 이승준, Lee Seung Jun, Ли Сон Чон, Seungjun, 승준, Сончон
Lee Seung Jun, better known by his stage name J-US, is the leader, vocalist and dancer of the boy group ONF. On December 27, 2021, he enlisted as an active-duty soldier.
![온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 2 poster](https://image.tmdb.org/t/p/w276_and_h350_face//whume1STRxwi0EVBYU8ZMk669nG.jpg)
![온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 1 poster](https://image.tmdb.org/t/p/w276_and_h350_face//zyN3yVwFR1NoZGgxd77aZ4etce7.jpg)
![온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 2 poster](https://image.tmdb.org/t/p/w276_and_h350_face//6DhiTgCYAg09SDRLGCktfByp6xD.jpg)
![ONF [FOCUS ON AND OFF] poster](https://image.tmdb.org/t/p/w276_and_h350_face//Au7UBGXv8opgUV1V7lUzl4Bu2i2.jpg)
![ONF 2021 LIVE CONTACT :: CODE #1. [REVERSE] poster](https://image.tmdb.org/t/p/w276_and_h350_face//4wjPi5x2igYJI9jrbE5QcJhSW8X.jpg)
