Won Heeun

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Won Heeun is the Featured Idol of May 2025

Won Heeun
Won Heeun in 2025
Background
Birth Name	Won Heeun (원희은)
Birth Date	April 23, 2001 (2001-04-23)
Birth Place	Hwaseong, Gyeonggi Province, South Korea
Nationality	South Korean
MBTI	ENFP
Career
Instruments	Vocals
Genre	K-pop
Fandom
Fandom Name	EUNITE
OOU
Face Claim	Sohee (Rocket Punch)

Won Heeun (Korean: 원희은) is a South Korean singer-songwriter, model, and actress under 24D Entertainment. She is a former member of co-ed group Randomize and girl group LUNIVER, the latter of which was formed by the 2022 survival audition program Star Maker 101.

Transitioning from an idol singer to a folk pop musician, Heeun made her debut as a solo artist with the extended play (EP) Don't Wake The Eternal Yearner in 2025, which was a critical success.

Early life

Won He-eun was born on April 23, 2003 in Hwaseong, Gyeonggi Province, South Korea. She was abandoned by her birth parents when she was born and spent the first six years of her childhood living in a small orphanage. Her energetic charms and intelligence as a child prodigy had attracted the attention of social worker Won Kyung-ja, who decided to adopt her as her second child.

Career

2022

In 2022, Heeun participated in the girl group survival show Star Maker 101, representing Four Bloc Entertainment alongside 3 other trainees. She was disadvantaged by her lack of skills as she had barely received any training or experience in singing and dancing, however, she gained attention for her fast improvement throughout the show alongside her special talents and naturally funny personality, which led her to finish 4th place, debuting in the girl group LUNIVER. She would promote with the group as a member until their disbandment in February 2023. While in the group, she acquired several individual endorsements and guestings on popular television programs, receiving positive reception for her cute aura and optimistic outlook on life.

2023

On May 1, 2023, Heeun redebuted as a member of project co-ed group Randomize, formed through the MBS variety program Sisters Class. The group disbanded in May 2025.

2024

On April 7, 2025, Heeun released her debut extended play (EP) Don't Wake The Eternal Yearner, an acoustic and folk pop record that includes duets with former SOLVIZ member Xavier Luna ("Twenty Four") and Eunji of girl group VENUS ("Broke My Promises"), the latter of which serves as the EP's lead single. The EP received generally positive reviews from music critics, who complimented Heeun's smooth transition from a pop idol to a matured musician.
On September 8, 2025, Heeun released her first single album Hee Tension!, featuring the lead single "120 Beats Per Minute (첫 키스에 내 심장은 120BPM)", which she fully wrote and composed by herself. The aforementioned song became her breakout hit in South Korea, peaking at #8 on the Circle Digital Chart.

Personal life

Friendships

Close Friends Jeon Miyoung (Former Randomize, LUNIVER, SIXA6ON) Mochizuki Kozue (Former Randomize, LUNIVER) Bae Yeju (Former LUNIVER) Friends Han Yul (Former Solviz) Lee Joonhee (Lilylee) Hirakawa Ichigo (Former LUNIVER) Huang Shuqing (Former LUNIVER) Liu Minwei (Former LUNIVER) Raven Leaño (Former LUNIVER) Kim Seungyun (Former LUNIVER) Acquaintances Kyler Kim (Carboncopyluv, former SOLUNEX)

Discography

Extended plays (EPs)

	Title / Release Date	Label	Format
	Don't Wake The Eternal Yearner April 2024	24D	CD · Download · streaming

Single albums

	Title / Release Date	Label	Format
	Hee Tension! September 2025	24D	CD · Download · streaming