Lee Seung-jun
1995 (31) • Acting
Lee Seung-jun
Lee Seung-jun, known mononymously as Seungjun and formerly known as J-Us, is a South Korean singer and lyricist under KI Entertainment. He is a member of the boy group ONF and its OFF team sub-unit.
Known For
Weekly Idol
68%
Himself
2011
Can I Step In?
41%
Kwon Sang Hae
2020
Road to Kingdom
94%
Self - Contestant
2020
![Poster for 2026 ONF CONCERT [THE MAP: BEYOND THE HORIZON]](https://image.tmdb.org/t/p/w185/vQmZPhEa8KrUCwrqRqMpl9pube9.jpg)
2026 ONF CONCERT [THE MAP: BEYOND THE HORIZON]
50%
SEUNGJUN
2026
![Poster for 2025 ONF CONCERT [THE MAP:STRANGER’S PATH]](https://image.tmdb.org/t/p/w185/pvF5lXWpkD3HuDDJSXeXtKXlZD1.jpg)
2025 ONF CONCERT [THE MAP:STRANGER’S PATH]
50%
SEUNGJUN
2025
![Poster for 온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 2](https://image.tmdb.org/t/p/w185/whume1STRxwi0EVBYU8ZMk669nG.jpg)
온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 2
SEUNGJUN
2024
![Poster for 온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 1](https://image.tmdb.org/t/p/w185/zyN3yVwFR1NoZGgxd77aZ4etce7.jpg)
온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 1
SEUNGJUN
2024
![Poster for 온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 2](https://image.tmdb.org/t/p/w185/6DhiTgCYAg09SDRLGCktfByp6xD.jpg)
온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 2
SEUNGJUN
2024
2026 ONF CONCERT [THE MAP: BEYOND THE HORIZON]
50%
SEUNGJUN
2026
2025 ONF CONCERT [THE MAP:STRANGER’S PATH]
50%
SEUNGJUN
2025
온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 2
SEUNGJUN
2024
온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 1
SEUNGJUN
2024
온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 2
SEUNGJUN
2024
온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 1
SEUNGJUN
2024
![Poster for ONF [FOCUS ON AND OFF]](https://image.tmdb.org/t/p/w185/Au7UBGXv8opgUV1V7lUzl4Bu2i2.jpg)
ONF [FOCUS ON AND OFF]
SEUNGJUN
2024
![Poster for ONF 2021 LIVE CONTACT :: CODE #1. [REVERSE]](https://image.tmdb.org/t/p/w185/4wjPi5x2igYJI9jrbE5QcJhSW8X.jpg)
ONF 2021 LIVE CONTACT :: CODE #1. [REVERSE]
SEUNGJUN
2021
Dive Into ONF
J-US
2021
Can I Step In?
41%
Kwon Sang Hae
2020
Road to Kingdom
94%
Self - Contestant
2020
Idol Radio
Special DJ
2018
Star Road
Unknown
2018
Weekly Idol
68%
Himself
2011