Lee Seungjoon

Biography

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.

Known For

Weekly Idol

Idol Radio

Star Road

Road to Kingdom

Can I Step In?

ONF [FOCUS ON AND OFF]

Dive Into ONF

온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 2

All Movies (7)

• 2026 ONF CONCERT [THE MAP: BEYOND THE HORIZON]2026 · as SEUNGJUN
• 2025 ONF CONCERT [THE MAP:STRANGER’S PATH]2025 · as SEUNGJUN
• 온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 22024 · as SEUNGJUN
• 온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 12024 · as SEUNGJUN
• 온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 22024 · as SEUNGJUN
• 온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 12024 · as SEUNGJUN
• ONF 2021 LIVE CONTACT :: CODE #1. [REVERSE]2021 · as SEUNGJUN

All TV Shows (7)

• ONF [FOCUS ON AND OFF]2024 · as SEUNGJUN
• Dive Into ONF2021 · as J-US
• Can I Step In?2020 · as Kwon Sang Hae
• Road to Kingdom2020 · as Self - Contestant
• Idol Radio2018 · as Special DJ
• Star Road2018
• Weekly Idol2011 · as Self