Biography

Woozi

우지 / Lee Ji-hoon

Woozi (Lee Ji-hoon) is a South Korean singer-songwriter and producer, leader of SEVENTEEN's vocal unit and the group's main producer. He released the mixtape Ruby in 2022, debuted HxW with Hoshi in 2025 and enlisted on September 15, 2025.

  • Singer

Profile

Woozi is a South Korean singer, songwriter and producer, the leader of SEVENTEEN’s vocal unit and the group’s main in-house producer alongside Bumzu — the creative engine behind SEVENTEEN’s “self-producing idols” identity.

He released the solo mixtape Ruby in 2022 and debuted the duo HxW with Hoshi in March 2025, before enlisting for mandatory military service on September 15, 2025.

Facts

  • As SEVENTEEN's main producer he was credited with writing over 80% of the group's discography as of January 2019, and became a full member of the Korea Music Copyright Association that year. Wikipedia EN
  • He won Best Producer at the 2021 Asia Artist Awards, the youngest recipient of the award in the show's history. Wikipedia EN
  • His first mixtape Ruby (January 3, 2022) topped iTunes charts in at least 18 regions. Wikipedia EN
  • He began mandatory military service on September 15, 2025, one day before bandmate Hoshi. Wikipedia EN

Works

Ruby Solo artist
2022 / Other
Beam (HxW) HxW member
2025 / Other
Happy Burstday (production) Producer/songwriter
2025 / Other

Awards

Asia Artist Awards Best Producer
2021 / Asia Artist Awards

FAQ

Does Woozi produce SEVENTEEN's music?
Yes. He is the group's main producer alongside Bumzu and has been credited with writing the vast majority of SEVENTEEN's discography, central to their "self-producing idols" identity.
Is Woozi in the military?
Yes. He enlisted for mandatory service on September 15, 2025 and remains on duty, with SEVENTEEN planning a full 13-member return around 2028.

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