Lee Seungjoon
Bio: 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
Born: Fri, Jan 13 1995
Birthplace: Seoul, South Korea
Lee Seungjoon is 30 years old
![Poster of 2025 ONF CONCERT [THE MAP:STRANGER’S PATH]](http://actoragecheck.com/image/L3B2RjVsWFdwa0QzSHVEREpTWGVYdEtYbFpEMS5qcGcAACh231.jpg "2025 ONF CONCERT [THE MAP:STRANGER’S PATH]")
![Poster of 온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 2](http://actoragecheck.com/image/L3dodW1lMVNUUnh3aTBFVkJZVThaTWs2NjluRy5qcGcAACh231.jpg "온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 2")
![Poster of 온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 1](http://actoragecheck.com/image/L3p5TjN5VndGUjFOb1pHZ3hkNzdhWjRldGNlNy5qcGcAACh231.jpg "온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 1")
![Poster of 온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 2](http://actoragecheck.com/image/LzZEaGlUZ0NZQWcwOVNEUkxHQ2t0ZkJ5cDZ4RC5qcGcAACh231.jpg "온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 2")
![Poster of ONF 2021 LIVE CONTACT :: CODE #1. [REVERSE]](http://actoragecheck.com/image/LzR3alBpNXgyaWdZSkk5anJiRTVRY0poU1c4WC5qcGcAACh231.jpg "ONF 2021 LIVE CONTACT :: CODE #1. [REVERSE]")
![Poster of ONF [FOCUS ON AND OFF]](http://actoragecheck.com/image/L0F1N1VCR1h2OG9wZ1VWMVY3bFV6bDRCdTJpMi5qcGcAACh231.jpg "ONF [FOCUS ON AND OFF]")
