Seo Yu-na (Korean:서유나; born December 30, 1992), better known by the mononym Yuna, is a South Korean singer-songwriter, actress and yoga instructor. She is a former member of the South Korean girl groupAOA and its sub-groups, AOA Black and AOA Cream.
Early life
Seo Yu-na was born on December 30, 1992.[1] She began playing the piano when she was seven years old, causing her to take interest in becoming a singer as an adult. At the age of 18, she traveled to Seoul alone after getting consent from her parents. She transferred schools and stayed at her uncle's house while she went to auditions and practised singing.[2] Her younger sister Yu-ri made her debut in 2014 with girl group Berry Good under Asia Bridge Entertainment, adopting the stage name "Seoyul".[3]
Career
Career with AOA
Yuna performing in 2013
On July 30, 2012, Yuna made her debut as a member of AOA on Mnet's M! Countdown with their debut single album, Angels' Story and the title track "Elvis".[4] AOA has released three EPs and nine singles as of June 22, 2015.[5] She is part of AOA's subunit "AOA Black". In 2015, AOA traveled to Hainan where they filmed One Fine Day, a variety program in which idols/idol groups go on a "healing" vacation. They were the seventh idol group to appear on the program.[6]
Yuna is also part of sub-unit AOA Cream together with Shin Hye-jeong and Im Do-hwa. The sub-unit released their first teaser on February 1, 2016.[7]
The music video teaser for title track "I'm Jelly Baby" was released on February 4, 2016.[8]
AOA Cream released their title track together with the MV on February 12, 2016.[9]
On January 1, 2021, Yuna's contract expired with FNC Entertainment, and she left the company.[10]
As an actress
Yuna has also had a successful, yet lesser known acting career, as she has played a lead role in the Japanese Musical Summer Snow in 2013, as well as playing another lead role in the comedic Korean web-drama Prince's Prince in February 2015.[11][12]
On October 20, 2013, Yuna sang for the OST "I'm Ok" for KBS's TV series Marry Him If You Dare. The song "I'm OK" is the theme song for the main character Na Mi-rae.[13]
Yuna in 2016
In October 2016, it was announced that she will be part of the cast of a new web-drama Hot and Sweet playing Joon Young, a part-time food worker. The drama premiered on October 20 and ran for 8 episodes.[14] Yuna also released two songs for the drama, one "Hot and Sweet" a duet with Choi Min-hwan and "Everything" a solo song.[15]
Yuna was then cast in another new web-drama My Old Friend. The drama aired starting in mid-November for five episodes through Naver TVCast.[16]
In 2017, Yuna was cast in the romantic comedy series Single Wife, scheduled for August 23.[17] In June, she sang the theme song for drama My Only Love Song, the song is called "Another You".[18]
Yuna sung the OST for tvN's A Korean Odyssey together with Shin Ji-min, the song is called "If You Were Me" and it was released on January 28, 2018.[19]
In February 2019, Yuna together with Shin Hye-jeong and Im Do-hwa will take part in Lifetime's reality program AOA DaSaDanang Heart Attack Danang where the members will travel to Danang, Vietnam for an adventure.[20] In July, she was cast in web drama Love Formula 11M as So-jin.[21]
As a yoga instructor
After her departure from AOA, Yuna gave an update on her social media and revealed she had transformed into a yoga instructor and living a new life outside of the entertainment industry.[22]
As songwriter, producer and backing singer
In December 2019, FNC Entertainment confirms that Yuna used her pseudonym E.NA to become a backing singer for Shin Yu-na's parts for Itzy's debut single "Dalla Dalla"; she also had credits in single "Heart Shaker" by Twice.[23]
She is also credited as the backing singer for Cosmic Girls's single "Butterfly".[24]
Personal life
Marriage
Seo and music composer Kang Jung-hoon, better known as Friday of GALACTIKA, were married in Seoul on February 18, 2024.[25] On July 4, 2025, Seo announced her pregnancy via Instagram.[26] Seo gave birth to a daughter on November 27.[27]
↑Jo, In-woo (June 1, 2015). AOA, 중국 하이난으로 떠난 '어느 멋진 날'[AOA departs for Hainan, China for 'One Wonderful Day']. Newsis (in Korean). Seoul. Archived from the original on April 12, 2026. Retrieved April 12, 2026.
↑Lee, Kyung-nam (February 1, 2016). "부드럽고 달콤한" AOA 크림, 2월12일 유나·혜정·찬미 유닛데뷔["Soft and sweet" AOA cream debuts as a unit of Yuna, Hyejung, and Chanmi on February 12th]. News1 (in Korean). Seoul. Archived from the original on April 12, 2026. Retrieved April 12, 2026.
↑Hwang, Hye-jin (February 4, 2016). AOA 유나 혜정 찬미 이렇게 예뻤나, 어깨드러낸 미니드레스 자태[AOA Yuna Hyejung Chanmi was so pretty, in a minidress with exposed shoulders]. Newsen (in Korean). Archived from the original on April 12, 2026. Retrieved April 12, 2026.
↑Cha, Eun-ho (February 12, 2016). aoa 크림 '크림처럼 살살 녹는 퍼포먼스' 러블리 끝판왕[AOA Cream 'Melting Performance Like Cream' Lovely End King]. K-Pop Herald (in Korean). Archived from the original on April 12, 2026. Retrieved April 12, 2026.
12Lee, Geum-joon (March 11, 2013). AOA 유나, 뮤지컬 '섬머스노우' 여주 캐스팅… '日 점령 신호탄'[AOA Yuna casts the female lead of the musical 'Summer Snow']. Asia Economy (in Korean). Retrieved April 12, 2026.
12Kim, Ha-jin (October 21, 2013). '미래의 선택' 윤은혜 테마곡, 알고보니 AOA 유나['Future Choice' Yoon Eun-hye's theme song, it turns out that AOA Yuna]. Herald Corporation (in Korean). Archived from the original on April 13, 2026. Retrieved April 13, 2026.
123Noh, Yoo-jung (October 17, 2016). FT아일랜드 민환·AOA 유나, 웹드 ‘매콤달콤’서 로코 호흡[FT Ireland Minhwan· AOA Yuna breathes in Rocco on Webd's 'Spicy and Sweet']. K-Pop Herald (in Korean). Archived from the original on April 13, 2026. Retrieved April 13, 2026.
12매콤달콤 OST. Melon (in Korean). October 28, 2016. Retrieved April 13, 2026.
12Oh, Jung-myun (October 11, 2016). '할매할배의 날' 드라마 '마이 올드 프랜드' 크랭크인['Grandmother's Day' drama 'My Old Friend' Crank-in]. Kyongbuk Ilbo (in Korean). Archived from the original on June 23, 2018. Retrieved April 13, 2026.
12Baek, Ji-eun (August 22, 2017). '싱글와이프' 유나 "AOA 멤버들 본방사수 약속, 커피차 응원해줘"['Single Wife' Yuna "AOA members promise to go to the main broadcast, support me for coffee tea"]. Sports Chosun (in Korean). Archived from the original on April 13, 2026. Retrieved April 13, 2026.
12Bae, Hye-joo (December 15, 2016). '명품 발라더' 이기찬, '마이 온리 러브송' OST 참여['Luxury Balader' Lee Ki-chan participates in the OST of 'My Only Love Song']. Newsen (in Korean). Archived from the original on April 13, 2026. Retrieved April 13, 2026.
12Jang, Woo-young (January 25, 2018). AOA 지민·유나X엔플라잉 유회승, '화유기' OST 합류[AOA's Jimin, Yuna X N-Flying's Yoo Hoe-seung joins the OST of 'Hwa Yu-gi']. K-Pop Herald (in Korean). Archived from the original on April 13, 2026. Retrieved April 13, 2026.
↑Hong, Seung-han (February 2, 2019). 'AOA 크림' 유나-혜정-찬미, 라이프타임 신규 웹예능 출연 확정['AOA Cream' Yoona, Hyejung, and Chanmi confirm to appear in Lifetime's new web entertainment show]. Sports Seoul (in Korean). Archived from the original on June 3, 2023 – via Naver.
123Kim, Min-ji (July 2, 2019). AOA 유나, 웹드라마 '사랑공식 11M' 출연 확정[AOA's Yuna confirmed to appear in the web drama 'Love Formula 11M']. News1 (in Korean). Seoul. Archived from the original on April 13, 2026. Retrieved April 13, 2026.
↑Cho, Hye-jin (December 17, 2021). 유나, AOA 탈퇴 후 '요가쌤' 변신 근황 "매일 눈바디 체크"[Yuna's transformation into 'Yoga Sam' after leaving AOA "Eye and body check every day"]. Xports News (in Korean). Archived from the original on October 12, 2023. Retrieved December 18, 2021.
↑Kang, Hyo-jin (December 26, 2019). [단독]AOA 유나, 알고보니 작곡명 E.NA로 활동…트와이스-ITZY 앨범도 참여[[Exclusive]AOA's Yuna turns out to be working as a songwriter E.NA... TWICE-ITZY album also participates]. Spotv News (in Korean). Archived from the original on December 4, 2024. Retrieved April 13, 2026.
↑Cosmic Girls (2020). Neverland (photobook). South Korea: Starship Entertainment; Kakao M. Credits.
↑Kim, Hyun-sik (January 11, 2024). [단독]AOA 출신 유나, 2월 결혼...예비 신랑은 작곡가[[Exclusive] Yuna from AOA gets married in February... The groom-to-be is a composer] (in Korean). Edaily Star. Archived from the original on February 8, 2024. Retrieved January 11, 2024.
↑"'초호화 산전관리' AOA 출신 유나, 첫 아이 품에 안았다 "환영해 겨울아""[Former AOA member Yuna embraces her first child, "Welcome, Winter," as she enjoys "super-luxurious prenatal care"]. Chosun Ilbo (in Korean). November 30, 2025. Retrieved November 30, 2025.
12Baek, Ah-young (March 15, 2020). '빅픽처 하우스' 첫 OST 주인공은 AOA 유나... 지친 영혼 달래주는 '위로' 오늘(15) 발매[The main character of the first OST of 'Big Picture House' is AOA Yuna... 'Comfort' to soothe the tired soul will be released today (15)]. iMBC (in Korean). Archived from the original on April 13, 2026. Retrieved April 13, 2026.
↑Kim, Young-jin (May 11, 2021). 강승식x유나·한동근·비비까지…‘오! 주인님’ 합본 OST 발매[Kang Seung-sik x Yuna, Han Dong-geun, and Bibi...'Oh! Master' compilation OST released]. Asia Today (in Korean). Archived from the original on April 13, 2026. Retrieved April 13, 2026.
↑Gil, Hye-sung (March 17, 2016). FNC, 자사 첫男댄스그룹 위해 '웹드라마' 제작.. 일석이조 노린다(종합)[FNC produces a 'web drama' for its first male dance group... Aiming for two birds with one stone (comprehensive)]. Star News Korea (in Korean). Archived from the original on April 13, 2026. Retrieved April 13, 2026.
↑Park, So-yoon (September 10, 2019). 이야기의 산실 웹툰, 뮤지컬·연극으로 재탄생[The birthplace of stories Webtoons, reborn as musicals and plays]. Yonhap News Agency (in Korean). Seoul. Archived from the original on April 13, 2026. Retrieved April 13, 2026.
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