![2026 ONF CONCERT [THE MAP: BEYOND THE HORIZON]](https://image.tmdb.org/t/p/w500/vQmZPhEa8KrUCwrqRqMpl9pube9.jpg)
5Acting
Lee Seung-jun
- Born
- 1995-01-13
- Birthplace
- Seoul, South Korea
Biography
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
![ONF [FOCUS ON AND OFF]](https://image.tmdb.org/t/p/w500/Au7UBGXv8opgUV1V7lUzl4Bu2i2.jpg)
![온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 1](https://image.tmdb.org/t/p/w500/zyN3yVwFR1NoZGgxd77aZ4etce7.jpg)
![온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 1](https://image.tmdb.org/t/p/w500/6DhiTgCYAg09SDRLGCktfByp6xD.jpg)
Filmography
15 titles · Newest first · Cast and crew credits
2026 ONF CONCERT [THE MAP: BEYOND THE HORIZON]
2026 · Movie
SEUNGJUN
2025 ONF CONCERT [THE MAP:STRANGER’S PATH]
2025 · Movie
SEUNGJUN
ONF [FOCUS ON AND OFF]
2024 · TV Show
SEUNGJUN
온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 1
2024 · Movie
SEUNGJUN
온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 2
2024 · Movie
SEUNGJUN
온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 1
2024 · Movie
SEUNGJUN
온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 2
2024 · Movie
SEUNGJUN
Dive Into ONF
2021 · TV Show
Self
ONF 2021 LIVE CONTACT :: CODE #1. [REVERSE]
2021 · Movie
SEUNGJUN
Can I Step In?
2020 · TV Show
Kwon Sang Hae
Road to Kingdom
2020 · TV Show
Self - Contestant
The Silence Of IDOL
2020 · TV Show
Cast
Idol Radio
2018 · TV Show
Special DJ
Star Road
2018 · TV Show
Self
Weekly Idol
2011 · TV Show
Self