Personal Info
Known For
Acting
Birthday
1995-01-13
Place of Birth
Seoul, South Korea
Lee Seung-jun
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
as Special DJ
as Self
as Self
as Self - Contestant
![온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 2](/api/proxy/media/image/w500/6DhiTgCYAg09SDRLGCktfByp6xD.jpg)
![2025 ONF CONCERT [THE MAP:STRANGER’S PATH]](/api/proxy/media/image/w500/pvF5lXWpkD3HuDDJSXeXtKXlZD1.jpg)
![ONF 2021 LIVE CONTACT :: CODE #1. [REVERSE]](/api/proxy/media/image/w500/4wjPi5x2igYJI9jrbE5QcJhSW8X.jpg)
![온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 1](/api/proxy/media/image/w500/zyN3yVwFR1NoZGgxd77aZ4etce7.jpg)
![2026 ONF CONCERT [THE MAP: BEYOND THE HORIZON]](/api/proxy/media/image/w500/vQmZPhEa8KrUCwrqRqMpl9pube9.jpg)
as Kwon Sang Hae
![온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 2](/api/proxy/media/image/w500/whume1STRxwi0EVBYU8ZMk669nG.jpg)
![ONF [FOCUS ON AND OFF]](/api/proxy/media/image/w500/Au7UBGXv8opgUV1V7lUzl4Bu2i2.jpg)
as SEUNGJUN
as Self
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