# Park Ye-eun
**Park Ye-eun** (박예은), known on stage as Yenny and since 2014 as **HA:TFELT** (핫펠트), is a South Korean singer, songwriter, and composer who debuted in 2007 as a member of the girl group [Wonder Girls](https://www.edgepedia.org/wonder-girls) under [JYP Entertainment](https://www.edgepedia.org/jyp-entertainment) and has worked as a solo singer-songwriter since 2014[1](https://www.last.fm/music/HA%3ATFELT). Born in 1989 in Goyang, Gyeonggi-do, she was Wonder Girls' main vocalist and keyboardist and later its second leader, and she wrote and composed material for the group before launching a solo career built around self-written songs[2](https://face-k.com/profile/3961/) • [3](https://www.bloomvocal.site/blog/how-to-sing-like-yeeun-wonder-girls).
| Key fact | Detail |
|---|---|
| Born | 1989, Goyang, Gyeonggi-do, South Korea[1](https://www.last.fm/music/HA%3ATFELT) |
| Debut | February 2007 with Wonder Girls, debut single album *The Wonder Begins*[2](https://face-k.com/profile/3961/) • [4](https://seore.org/w/%ED%95%AB%ED%8E%A0%ED%8A%B8) |
| Billboard milestone | Wonder Girls' English "Nobody" entered the Billboard Hot 100 at No. 76 in 2009, the first Korean singer to reach that chart[5](https://www.newsis.com/view/NISX20200422_0001001813) • [6](https://newstomato.com/ReadNews.aspx?no=965856) |
| Pen name | HA:TFELT, used from 2011 for songwriting and from 2014 as her solo stage name; it plays on "heartfelt" with an added "hot"[7](https://www.starnewskorea.com/music/2011/11/13/2011111314383198214) • [8](https://ent.sbs.co.kr/news/article.do?article_id=E10005559734) |
| Solo debut | EP *Me?* released July 31, 2014, with all seven tracks written and composed by her, title track "Ain't Nobody"[9](https://www.tenasia.co.kr/article/2014073149374) |
| Agency history | JYP Entertainment 2007 to early 2017; Amoeba Culture from April 2017 (its first female artist) to January 2023; currently without an agency[10](https://kpop.fandom.com/wiki/HA%3ATFELT) • [11](https://www.soompi.com/article/1563164wpp/hatfelt-yeeun-parts-ways-with-amoeba-culture-after-nearly-6-years-shares-sweet-message-with-fans) |
| First full album | *1719*, released April 23, 2020, 14 tracks, accompanied by a limited-edition storybook printed in exactly 1,719 copies[6](https://newstomato.com/ReadNews.aspx?no=965856) • [5](https://www.newsis.com/view/NISX20200422_0001001813) |
## Wonder Girls, 2007 to 2017
Wonder Girls were formed by JYP Entertainment and debuted in February 2007 with the single "Irony"; the original lineup of Sunye, Yeeun, Sohee, Hyuna, and [Sunmi](https://www.edgepedia.org/sunmi) was assembled through the broadcaster SBS's talent project with producer [Park Jin-young](https://www.edgepedia.org/park-jin-young)[12](https://v.daum.net/v/20170126171556245). Yeeun herself had been chosen as the group's fifth member through a public audition in December 2006[13](https://www.kakaocorp.com/page/detail/6418). After Hyuna's departure in July 2007, Yubin joined, and the reworked lineup scored national hits with "Tell Me" and "Nobody", becoming one of the central acts of second-generation K-pop alongside [Girls' Generation](https://www.edgepedia.org/girls-generation)[12](https://v.daum.net/v/20170126171556245) • [6](https://newstomato.com/ReadNews.aspx?no=965856).
The group's defining commercial moment came in 2009, when the English version of "Nobody" entered Billboard's main singles chart, the Hot 100, at No. 76, the first entry by a Korean singer on that chart[5](https://www.newsis.com/view/NISX20200422_0001001813). Within the group Yeeun served as lead and later main vocalist, and she also played keyboard; after Sunye's departure she became the group's second leader[2](https://face-k.com/profile/3961/) • [3](https://www.bloomvocal.site/blog/how-to-sing-like-yeeun-wonder-girls).
## Songwriting and the HA:TFELT name
Yeeun began writing songs before her debut, at age 18, after failing an audition program; her first released composition was "Saying I Love You" on the 2009 Wonder Girls release *The Wonder Years - Trilogy*, the album containing "Nobody"[9](https://www.tenasia.co.kr/article/2014073149374) • [14](https://v.daum.net/v/20220519050602141). In 2011 she revealed her composer pen name, HA:TFELT, credited on the Wonder Girls album track "G.N.O" and on an arrangement of Shin Joong-hyun's "Mi, In"[7](https://www.starnewskorea.com/music/2011/11/13/2011111314383198214). The name derives from the English word "heartfelt", meaning sincere and from the heart, with a deliberate second reading of "hot"; she explained that she wanted to make sincere music in a hot, fresh way[8](https://ent.sbs.co.kr/news/article.do?article_id=E10005559734). She signed with JYP Publishing as a composer, the first JYP singer to do so after Park Jin-young himself[9](https://www.tenasia.co.kr/article/2014073149374).
Park Jin-young initially objected that the name sounded too feminine for her, and the spelling settled on the British-style "Ha:tfelt" rather than the American "Ha:rtfelt"[7](https://www.starnewskorea.com/music/2011/11/13/2011111314383198214). She also wrote for other artists, including Sunmi's "If That Was You"[9](https://www.tenasia.co.kr/article/2014073149374).
## Solo career
In July 2014, while still a Wonder Girls member, she announced her solo debut under the HA:TFELT name, and the EP *Me?* followed on July 31 with the title track "Ain't Nobody"[8](https://ent.sbs.co.kr/news/article.do?article_id=E10005559734). All seven tracks on the EP were written, composed, and produced by her, a departure from the retro dance sound of Wonder Girls, and she adopted the unfamiliar pen name so listeners would approach the music without preconceptions[9](https://www.tenasia.co.kr/article/2014073149374) • [15](https://star.ohmynews.com/NWS_Web/OhmyStar/at_pg_m.aspx?CNTN_CD=A0002020118).
Wonder Girls disbanded in 2017, ending with the song "Draw Me" (그려줘), and Yeeun left JYP Entertainment after ten years[6](https://newstomato.com/ReadNews.aspx?no=965856) • [11](https://www.soompi.com/article/1563164wpp/hatfelt-yeeun-parts-ways-with-amoeba-culture-after-nearly-6-years-shares-sweet-message-with-fans). In April 2017 she signed with the hip-hop label [Amoeba Culture](https://www.edgepedia.org/amoeba-culture), run by the duo Dynamic Duo, as the label's first female artist, and permanently adopted HA:TFELT as her stage name[10](https://kpop.fandom.com/wiki/HA%3ATFELT) • [16](https://enews.imbc.com/Tpl/View/216762).
Her releases under Amoeba Culture include the single album *Deine* (2018), whose lead track "Pluhmm" (위로가 돼요) has over 1.2 million views on its music video; the solo single "Happy Now" (2019) featuring Mamamoo's Moonbyul; the single "La Luna" (September 10, 2020), part of the label's 15th-anniversary "THEN TO NOW" project; "Summertime" (July 2021); and the EP *LEFT* (April 19, 2022), whose four tracks, Left, Every Love, FiNE, and Tempo, spell out the title[17](https://iplaykpop.com/artists/623) • [18](https://kstyle.com/topicNews.ksn?page=1&topicNo=6962) • [14](https://v.daum.net/v/20220519050602141).
**1719.** Her first full-length album, *1719*, was released on April 23, 2020, thirteen years after her debut[5](https://www.newsis.com/view/NISX20200422_0001001813). The 14 tracks include the double title songs "Satellite" and "Sweet Sensation" featuring the singer sole, plus collaborations with Dynamic Duo's Gaeko and Choiza and THAMA[5](https://www.newsis.com/view/NISX20200422_0001001813). The album draws on her experiences from 2017 to 2019, a period she has described as her darkest three years, during which she received counseling and turned to writing; a companion storybook, subtitled "On the Locked-Up Times" (잠겨 있던 시간들에 대하여), was printed in a limited run of 1,719 copies matching the album title[6](https://newstomato.com/ReadNews.aspx?no=965856) • [19](https://www.tenasia.co.kr/article/2020042293074).
On January 16, 2023, Amoeba Culture announced the end of her exclusive contract after nearly six years, and she has since worked without an agency[11](https://www.soompi.com/article/1563164wpp/hatfelt-yeeun-parts-ways-with-amoeba-culture-after-nearly-6-years-shares-sweet-message-with-fans).
## Public voice
HA:TFELT has been an outspoken public figure beyond music. In a 2019 written interview around "Happy Now", she stated plainly, "I am a feminist", adding that she had been one long before she knew the word, while saying she had no intention of forcing that message into her songs[20](https://www.khan.co.kr/article/201908181427001/amp). At the 2018 Wonder Woman Festival she told women, "It's okay to shout louder and be noisier in the world", and her album track "Bluebird", conceived for a project for women, casts herself as a bird rather than a flower against social prejudice[5](https://www.newsis.com/view/NISX20200422_0001001813). In 2022 she publicly supported the disability rights protests over subway mobility, writing that people without disabilities should ask whether they understand the protesters' pain[14](https://v.daum.net/v/20220519050602141). She has also discussed feminism and her views on marriage on the MBC talk show [Radio Star](https://www.edgepedia.org/radio-star), explaining remarks that had drawn controversy[21](https://www.koreaboo.com/stories/hatfelt-feminist-anti-marriage-remarks/).
Her songwriting centers her own experience: she has said her music as HA:TFELT is story-based, built on her life rather than a company-designed concept, and that honesty is the instrument through which her songs reach listeners[22](https://www.soompi.com/article/1399165wpp/hatfelt-talks-about-her-upcoming-album-shares-mindset-on-speaking-out).
## References
1. [HA:TFELT, Last.fm](https://www.last.fm/music/HA%3ATFELT)
2. [핫펠트 hot felt 프로필, Face-K](https://face-k.com/profile/3961/)
3. [HA:TFELT의 보컬 프로필, Bloom Vocal](https://www.bloomvocal.site/blog/how-to-sing-like-yeeun-wonder-girls)
4. [핫펠트, seore](https://seore.org/w/%ED%95%AB%ED%8E%A0%ED%8A%B8)
5. ["'원더걸스' 출신 예은 핫펠트 '이젠 별이 아니어도 괜찮다'", 뉴시스, April 23, 2020](https://www.newsis.com/view/NISX20200422_0001001813)
6. ["핫펠트로 돌아온 원더걸스 예은, 스토리북 1719권 한정 발간", 뉴스토마토, April 13, 2020](https://newstomato.com/ReadNews.aspx?no=965856)
7. ["예은 '작곡가 필명은 Ha:tfelt, 진심·열정의 뜻'", 스타뉴스, November 13, 2011](https://www.starnewskorea.com/music/2011/11/13/2011111314383198214)
8. ["원더걸스 예은 '솔로'로 변신한다", SBS연예뉴스, July 23, 2014](https://ent.sbs.co.kr/news/article.do?article_id=E10005559734)
9. ["예은, 또 다른 이름 핫펠트를 얻기까지 (인터뷰)", 텐아시아, July 31, 2014](https://www.tenasia.co.kr/article/2014073149374)
10. [HA:TFELT, Kpop Wiki (Fandom)](https://kpop.fandom.com/wiki/HA%3ATFELT)
11. ["HA:TFELT (Yeeun) Parts Ways With Amoeba Culture After Nearly 6 Years", Soompi, January 16, 2023](https://www.soompi.com/article/1563164wpp/hatfelt-yeeun-parts-ways-with-amoeba-culture-after-nearly-6-years-shares-sweet-message-with-fans)
12. ["원더걸스 1기부터 4기까지, 국민 걸그룹의 10년 발자취", XP초점 (다음), January 26, 2017](https://v.daum.net/v/20170126171556245)
13. ["다음 tv팟, JYP 신인 걸그룹 멤버 공개 모집", 카카오](https://www.kakaocorp.com/page/detail/6418)
14. ["핫펠트 '나는 페미니스트라고 당당히 말해요'", 한겨레 (다음), May 19, 2022](https://v.daum.net/v/20220519050602141)
15. ["핫펠트가 되기 위해...박진영과 전쟁 치렀다", 오마이스타](https://star.ohmynews.com/NWS_Web/OhmyStar/at_pg_m.aspx?CNTN_CD=A0002020118)
16. ["예은, 원더걸스에서 핫펠트(HA:TFELT)로! 새 앨범 10월 12일 '마이네(MEiNE)'로 컴백!", iMBC연예, 2017](https://enews.imbc.com/Tpl/View/216762)
17. [HA:TFELT, iPlayKpop](https://iplaykpop.com/artists/623)
18. [HA:TFELT 뉴스, Kstyle](https://kstyle.com/topicNews.ksn?page=1&topicNo=6962)
19. [TEN 인터뷰 핫펠트 죽고 싶었던 지난 3년 노래와 글 쓰며 이겨냈죠 | 텐아시아](https://www.tenasia.co.kr/article/2020042293074)
20. ["'해피 나우' 핫펠트 예은 '나는 페미니스트...변화는 자연스러운 흐름'", 경향신문, August 18, 2019](https://www.khan.co.kr/article/201908181427001/amp)
21. ["HA:TFELT Explains What Led Her to Make 'Feminist' and 'Anti-Marriage' Remarks", Koreaboo, 2020](https://www.koreaboo.com/stories/hatfelt-feminist-anti-marriage-remarks/)
22. ["HA:TFELT Talks About Her Upcoming Album, Shares Mindset On Speaking Out", Soompi, 2020](https://www.soompi.com/article/1399165wpp/hatfelt-talks-about-her-upcoming-album-shares-mindset-on-speaking-out)
---
*Topic: Encyclopedia › Arts and culture › Music › Music scenes › East and Southeast Asian pop scenes › K-pop and the Korean popular music scene › Artists, groups, and people: K-pop and the Korean popular music scene › First- and second-generation idol groups and 1990s dance acts › Surnames K to S*
*Initially written Sep 17, 2026 · Reviewed: Sep 17, 2026; Sep 18, 2026; Oct 25, 2026 · Edited: Sep 18, 2026; Oct 12, 2026; Oct 25, 2026 · Last review: Oct 25, 2026*
*Copyright 2026 EdgeChat AI, a subsidiary of Biostate AI.*
License: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license