Woozi

Lee Ji-hoon (; born November 22, 1996), known by his stage name Woozi , is a South Korean singer, songwriter and record producer. Managed by Pledis Entertainment, he is a member of the South Korean boy band Seventeen, the leader of its vocal team, and part of its subunit Hoshi X Woozi.

In 2022, he made his solo debut with "Ruby". Aside from his work as a soloist and with Seventeen, Woozi has also written for other K-pop artists such as NU'EST W, Ailee, and I.O.I.

Early life From a young age, Woozi studied classical music and learned to play the clarinet and other band instruments. He successfully auditioned for Pledis Entertainment and met labelmate Bumzu, a frequent collaborator on music production. He graduated from Hanlim Multi Art School and subsequently enrolled in Hanyang University. In 2022, he enrolled in a Master's degree at Anyang University.

Career 2015–present: Seventeen solo and sub-unit activities On May 26, 2015, Woozi debuted in the self-producing group Seventeen with the single "Adore U". He helped write and produce every track on their debut extended play (EP) 17 Carat. He has since become Seventeen's main producer along with Bumzu and is credited for writing over 80% of the group's discography as of January 2019. In 2017, Woozi wrote the last single released by the project group I.O.I, "Downpour", whose lyrics received praise. Later that year, he gifted the song "Thankful for You" to labelmate Baekho of NU'EST W, which was featured in the group's first EP W, Here. Woozi became a full member of the Korea Music Copyright Association in 2019. On October 15, 2019, Woozi released the song "Miracle" for the soundtrack of the television series The Tale of Nokdu.

In 2021, he worked with fellow Seventeen member Hoshi on the latter's song "Spider", which debuted at number five on the Billboard World Digital Song Sales chart. That year, Woozi won Best Producer at the 6th Asia Artist Awards, becoming the youngest recipient of the accolade in the show's history. Its lead single, the first track he wrote entirely in the English language, reached number one on iTunes charts in at least 18 different regions, including Chile, Mexico, Indonesia, and Philippines.

On January 26, 2024, Woozi officially released the song "What Kind of Future" as a birthday gift to his late friend Moonbin, who had died the previous year.

On February 19, 2025, Pledis Entertainment announced that Woozi would be debuting in a sub-unit alongside Hoshi as Hoshi X Woozi, with the release of a single album titled Beam on March 10.

Endorsements In October 2022, Korean fashion brand Romantic Crown announced that they had selected Woozi as their brand model for their 2022 Fall/Winter collection. In March 2023, the brand collaborated with Woozi on a second collection, which featured clothing referencing "Universe Factory", Woozi's nickname for his music studio.

Personal life Military service Woozi commenced his mandatory military service in the South Korean military on September 15, 2025, as an active duty soldier.

Discography

Singles Title Year Peak chartpositions Sales AlbumKOR "Q&A" 2015 58

KOR: 25,591 14216 "Ruby" 2022 — "What Kind of Future" 2024 133 "—" denotes releases that did not chart or were not released in that region.

Other charted songs

Title Year Peak chart positions AlbumKOR "Destiny" 2025 104 Happy Burstday

Soundtrack appearances Title Year Peak chart positions Album KOR "A-Teen" 2018 17 — A-Teen OST "Miracle" 2019 — — The Tale of Nokdu OST "Is It Still Beautiful" 2021 25 22 Hospital Playlist OST Part 8 "—" denotes releases that did not chart or were not released in that region.

Awards and nominations

Award Year Category Nominee(s) / work(s) Result Asia Artist Awards 2021 Best Producer Woozi Melon Music Awards 2017 Hot Trend Award "Downpour"