Person

Lee Seungjoon

Acting · Born 1995-01-13 · Seoul, South Korea

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.

• 

  Weekly Idol

  Self

• 

  Star Road

  2018

• 

  Idol Radio

  Special DJ

• 

  Road to Kingdom

  Self - Contestant

• 

  Can I Step In?

  Kwon Sang Hae

• 

  ONF [FOCUS ON AND OFF]

  SEUNGJUN

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  Dive Into ONF

  J-US

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

  SEUNGJUN

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

  SEUNGJUN

• 

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

  SEUNGJUN

• 20262026 ONF CONCERT [THE MAP: BEYOND THE HORIZON]SEUNGJUN
• 20252025 ONF CONCERT [THE MAP:STRANGER’S PATH]SEUNGJUN
• 2024온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 2SEUNGJUN
• 2024온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 1SEUNGJUN
• 2024온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 2SEUNGJUN
• 2024온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 1SEUNGJUN
• 2024ONF [FOCUS ON AND OFF]SEUNGJUN
• 2021ONF 2021 LIVE CONTACT :: CODE #1. [REVERSE]SEUNGJUN
• 2021Dive Into ONFJ-US
• 2020Can I Step In?Kwon Sang Hae
• 2020Road to KingdomSelf - Contestant
• 2018Idol RadioSpecial DJ
• 2018Star Road
• 2011Weekly IdolSelf