Acting
Lee Seung-jun
Born January 13, 1995 (Age 31)Seoul, South Korea15 Credits
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.
![2026 ONF CONCERT [THE MAP: BEYOND THE HORIZON] poster](https://image.tmdb.org/t/p/w500/vQmZPhEa8KrUCwrqRqMpl9pube9.jpg)
![2025 ONF CONCERT [THE MAP:STRANGER’S PATH] poster](https://image.tmdb.org/t/p/w500/pvF5lXWpkD3HuDDJSXeXtKXlZD1.jpg)
