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

Can I Step In?

as Kwon Sang Hae

Weekly Idol

as Himself

Road to Kingdom

as Self - Contestant

온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 1

as SEUNGJUN

온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 1

as SEUNGJUN

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

as SEUNGJUN

ONF 2021 LIVE CONTACT :: CODE #1. [REVERSE]

as SEUNGJUN

온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 2

as SEUNGJUN

2025 ONF CONCERT [THE MAP:STRANGER’S PATH]

as SEUNGJUN

Idol Radio

as Special DJ