Koo Hye-sun
Korean composer, singer, actor and filmmaker whose new-age piano music connects her albums, films and visual art.
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Latest
Hye-sun’s happenings, collected from public sources, plus her backstory and Starbook, where fans write.
Known for
Album
Album
Album
Music film
Film
KBSOverview
- Name in Korean
- 구혜선
- Born
- November 9, 1984
- Nationality
- South Korean
- Creative work
- Composition, singing, acting, filmmaking and visual art
- Breakout
- Geum Jan-di in Boys Over Flowers (2009)
- First album
- Breath (2009)
Mini bio
How it started.
Hye-sun first attracted attention online as an ulzzang, a term used for popular faces on Korean internet communities. She trained to sing before shifting toward acting at YG Entertainment. Commercial work and Nonstop 5 helped introduce her to television audiences.
The role fans remember.
Her portrayal of Geum Jan-di in Boys Over Flowers in 2009 brought her recognition across Asia. Alongside acting, she began building a body of work as a composer and filmmaker.
A life in music.
Her 2009 album Breath includes “Around the Alley” with Gummy. Later releases include the new-age album Breath 2 and SUM4. Her official YouTube channel pairs her own piano compositions with video, giving fans another way into her music.
Making her own films.
She directed and produced The Peach Tree, which premiered at Busan in 2011, and later directed and acted in Daughter. Her 2024 music film Studio Koohyesun revisits the feelings and songs that followed The Peach Tree.
Still learning.
Her recent work reaches into research and product design as well as the arts. In 2026 she shared her KAIST science-journalism degree certificate and discussed how her music copyrights help sustain her work.
Creditschronological, newest first
Music
- 2021SUM4Artist
- 2015Breath 2: After 10 years 100 yearsComposer and artist
- 2012The Peach Tree soundtrackArtist
- 2009BreathComposer and artist
Film and television
- 2024Studio KoohyesunDirector and featured artist
- 2014DaughterDirector, screenwriter and actor
- 2012The Peach TreeDirector and screenwriter
- 2009Boys Over FlowersGeum Jan-di
Awards
Quotes
I have been working as a composer in secret.Koo Hye-sun, Presidential Council on Intellectual Property interview, reported by The Herald Business
The article’s English translation of her August 2026 interview, in which she discussed her new-age compositions and music copyrights.
Trivia
- Her first album includes a collaboration with singer Gummy on “Around the Alley”.
- Studio Koohyesun is a 15-minute music and nonfiction film.
- The Peach Tree was a Busan world premiere in 2011 before its 2012 theatrical release.
Find Hye-sun
Follow her piano music, films and everyday creative projects.
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