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For other people known as 'Yeeun', see Yeeun.

HA:TFELT (핫펠트; formerly known as Yeeun and Yenny) is a South Korean singer-songwriter and composer currently under Amoeba Culture. She is a former member of the girl group Wonder Girls.

She made her solo debut on July 31, 2014 with the mini album Me?.


2007–2017: Wonder Girls, solo debut

She debuted as a member of Wonder Girls on February 13, 2007 with the group's first mini album The Wonder Begins.

On July 22, 2014, it was announced she would be making her solo debut under the stage name HA:TFELT.[1] She officially debuted as a solo artist on July 31, 2014 with her first mini album Me?.

Following Sunye's departure from JYP Entertainment and Wonder Girls in December 2014, Yeeun was appointed as the group's new leader.

On January 26, 2017, JYP Entertainment announced that Wonder Girls would be disbanding after she and Sunmi decided not to renew their contracts with the agency.[2]

The group's final single "Draw Me" was released on their tenth anniversary–February 10, 2017.

She was the only member to participate in all of Wonder Girls' activities.

2017–present: New agency, solo career

On April 10, Amoeba Culture announced that she had signed on with the agency as a solo artist, permanently changing her stage name to HA:TFELT.[3] Her first digital single under the agency, "Meine", was released on October 12.

Personal life


On September 20, 2016, local news source Sports Donga reported that she and 2AM's Jeong Jinwoon had been dating for three years. Later that day, the report was confirmed by both agencies.[4][5]

On April 23, 2017, it was announced the couple had broken up.[6]


Studio albums

Mini albums

Digital singles


  • "There Must Be" (with Joo Hyo) (2015)
  • "One Dream One Korea" (with Various Artists) (2015)
  • "나 오늘" (with Dynamic Duo, snzae, Thama, SOLE) (2020)



  • "Dream High 2 OST Part.3" ("Hello to Myself") (2012)
  • "Cross Country OST Part.1" (2017)
  • "Cross Country OST Part.4" (with Suran, Bohyung) (2017)



  • That Person Is Coming (MBC, 2008) - cameo
  • Dream High 2 (KBS, 2012) - cameo
  • Basketball (tvN, 2013)


  • The Last Godfather (2010) - cameo
  • The Wonder Girls (2012) - herself (fictionalized)

Reality shows

  • Food Truck Battle (PPTV HD 36, 2019) - contestant

Producing and writing credits

Artist Song Album Type
Wonder Girls "Saying I Love You" The Wonder Years: Trilogy Writing
Wonder Girls "G.N.O" Wonder World Writing, Composing
"Me, In"
Herself "Hello To Myself" Dream High OST Part.3 Writing, Composing
Wonder Girls "R.E.A.L" Wonder Party
Herself "Iron Girl" (feat. Lim) Me? Writing, Composing
"Ain't Nobody"
"Bond" (feat. Beenzino)
"Wherever Together"
"Peter Pan"
"Nothing Lasts Forever"
Sunmi "If That Was You" Full Moon
Wonder Girls "Baby Don't Play" Reboot Writing, Composing
"One Black Night"
Yubin "Who Am I" Unpretty Rapstar 2 Final X Semifinal
Giriboy "Back And Forth 30 Minutes" Sexual Perceptions Writing
Herself, Joo Hyo "There Must Be" "There Must Be" Writing
Younha, Cheetah, Herself "Get It?" "Get It?" Writing, Composing
Wonder Girls "Sweet & Easy" "Why So Lonely"
Babylon "Rainy Street" "Between Us"
Wonder Girls "Draw Me" "Draw Me" Writing
Jeong Jinwoon "Set Me Free" "Set Me Free"
TWICE "Only You" Signal
Herself "I Wander" (feat. Gaeko) "Meine"
"Read Me" (feat. Punchnello"
Herself "Pluhmm" "Deine" Writing, Composing
Herself "Happy Now" (feat. Moonbyul) "Happy Now" Writing, Composing
Herself "Life Sucks" 1719 Writing, Composing
"Piercing" (feat. THAMA)
"Make Love"
"Satellite" (feat. ASH ISLAND)
"Sweet Sensation" (feat. SOLE)
"3 Bunman" (feat. Choiza)
"Sky Gray"
"How to Love"


Main article: HA:TFELT/Gallery


Official links