

The musical architect of Seventeen, a producer and songwriter who crafts the group's signature sound from the studio up.
Within the powerhouse K-pop group Seventeen, Woozi operates as the quiet engine in the control room. Though a gifted vocalist and the leader of the vocal team, his most profound impact is as the group's primary in-house producer and songwriter. Under the moniker 'Woozi,' Lee Ji-hoon has co-composed and written lyrics for the vast majority of Seventeen's expansive discography, shaping their musical identity across genres from energetic pop to emotional R&B. This hands-on creative control is rare in the industry, making him not just a performer but the foundational composer for one of South Korea's most successful boy bands, proving that the heart of the group often beats loudest behind the scenes.
1981–1996
The first digital natives. Grew up with the internet, came of age during 9/11 and the 2008 crash. Highly educated, deeply indebted, slower to marry and buy houses. Redefined work, identity, and what it means to be an adult.
Woozi was born in 1996, placing them squarely in the Millennials. The events that shaped this generation — the internet revolution, 9/11, and the 2008 financial crisis — shaped the world they entered and the choices available to them.
The biggest hits of 1996
#1 Movie
Independence Day
Best Picture
The English Patient
#1 TV Show
ER
The world at every milestone
Dolly the sheep cloned
September 11 attacks transform the world
Michael Jackson dies; Bitcoin created
Curiosity rover lands on Mars; Sandy Hook shooting
Russia annexes Crimea; Ebola outbreak in West Africa
#MeToo movement; solar eclipse crosses the US
His stage name 'Woozi' comes from the Korean word for '우주' (universe) and his given name 'Ji-hoon', meaning 'Ruler of the Universe'.
He is left-handed.
He is a skilled guitarist and often plays during Seventeen's acoustic performances.
He is known for being exceptionally short in stature compared to his group members, a fact he often jokes about.
“Even if I'm lacking, I want to be a person who can fill up those lacks with effort.”