Woozi (우지)

The structured facts identify Woozi — born Lee Ji-hoon — as a member and the Vocal Team leader of SEVENTEEN, one of South Korea's most commercially significant group acts of the past decade. Within that thirteen-member group, he occupies an unusually dual role: lead vocalist and in-house producer, a combination that has shaped much of SEVENTEEN's recorded output since their 2015 debut.

Debut & Formation

Woozi debuted with SEVENTEEN on May 26, 2015, under Pledis Entertainment, as part of a group structured around three sub-units — Performance, Hip-Hop, and Vocal. He leads the Vocal Team, a unit built around the group's core singers, where he also serves as lead vocalist and producer. That production responsibility has been a defining feature of his career from the beginning: unlike most idol-group members, Woozi has contributed to the writing and composition of SEVENTEEN's music in a formal, credited capacity rather than as an occasional participant.

Music & Discography

Woozi's songwriting and production work runs through a substantial portion of SEVENTEEN's catalogue. The group's self-produced identity — a selling point that set them apart in the mid-2010s idol landscape — has depended in large part on contributions from members including Woozi on the melodic and vocal side, and fellow member Bumzu on broader production. His work spans the group's Korean and Japanese releases and has scaled across formats from compact single albums to full-length studio records.

Beyond SEVENTEEN's main discography, Woozi is also a member of HOSHI X WOOZI, a sub-unit pairing him with fellow member Hoshi, extending his recorded presence outside the full-group format.

Members

As the subject of this profile is an individual member rather than a group, a full line-up section is not applicable here. Within SEVENTEEN's structure, Woozi holds the following roles:

• Leader of the Vocal Team sub-unit
• Lead Vocalist
• Main Dancer (within the Vocal Team unit)
• Producer

His MBTI type is listed as INFJ — a detail he has discussed publicly, consistent with a self-described introverted personality that fans and observers have noted contrasts with the high-energy performance demands of a thirteen-member stage act.

Activities

The available material does not detail specific solo schedules, variety appearances, or promotional activities for Woozi at this time beyond his ongoing work within SEVENTEEN and the HOSHI X WOOZI sub-unit. His primary public-facing activity remains his role in the group's recording and live performance output.