Seohyun

At 33 years old, Seohyun has this physical status:

In August 2007, Seohyun made her official debut as the youngest member of girl group Girls' Generation. The group gained significant popularity after the release of their hit single "Gee" in 2009.

Seohyun's early solo work mostly involved songs recorded for side projects and original soundtracks. Although they did not achieve much commercial success; her duet titled "JjaLaJaJJa" with veteran singer Joo Hyun-mi earned a "Trot Music of the Year" nomination at the 2009 Mnet Asian Music Awards. In 2010–2011, Seohyun appeared in MBC's variety show We Got Married 2, alongside CNBLUE's Yonghwa. They played a make-believe couple, portraying what life would be like if they were married. In addition, Seohyun was cast as voice actor for the Korean-dubbed version of animated film Despicable Me (2010) and its sequel Despicable Me 2 (2013), together with fellow member Taeyeon. She voiced the character of Edith, who is known for her rebellious attitude.

In April 2012, Seohyun, along with fellow members Taeyeon and Tiffany, formed a Girls' Generation subgroup named TTS. Their debut EP, Twinkle, met with much success and became the eighth highest selling album of the year in South Korea. The subgroup went on to release two more EPs: Holler (2014) and Dear Santa (2015). Besides contributing her vocals to Girls' Generation and TTS songs, Seohyun began to become more active in lyrics writing. She co-wrote the songs "Baby Maybe" and "XYZ" (I Got a Boy, 2013) and was credited as the sole lyricist for "Only U" (Holler, 2014) and "Dear Santa" (Dear Santa, 2015).

In 2013, Seohyun debuted as an actress when she was cast for a supporting role in SBS's drama Passionate Love. She played Han Yu-rim, a veterinary student and first love of the male lead character. Director Bae Tae-sub said Seohyun's persona "perfectly paralleled that of her role" and "her understanding and expressiveness of the character exceeds those of a rookie actress".

Seohyun, self-described as someone who likes both singing and acting, began to develop an interest in musical theatre. She named musical actress Ock Joo-hyun, who later became her mentor, as her main influence. Although she had wanted to be in a musical for a long time, she rejected casting offers because she felt unprepared. In January 2014, her wish was fulfilled as she accepted her first musical acting role. Seohyun made her theatrical debut in the musical, Moon Embracing the Sun, which was adapted from the novel of the same name. Seohyun played the lead role, Yeon-woo, the daughter of a noble family who has a love relationship with both the King and his brother.

In January 2015, Seohyun was cast in the role of Scarlett O'Hara in the Korean version of Autant en emporte le vent, a French musical based on Gone with the Wind. She received encouraging review for her performance. Seon Mi-gyeong of OSEN said that while Seohyun's performance cannot surpass that of Bada, who shared the same role, her "fierce voice" complemented and successfully expressed an arrogant Scarlett O'Hara. Kim Hyun-joong of Sports Chosun noted Seohyun's occasional "clumsy" acting, but compared her to Ock Joo-hyun during her rookie days and said that "her ability to bring emotion through song, the most important part of a musical, rivaled that of a veteran actor. Despite a short career, she endlessly showed us various colours and peculiar charms of a woman's life."

From February–June 2016, Seohyun was cast in the Korean version of the musical Mamma Mia. She played a character named Sophie, a 20-year-old bride-to-be, who hopes to find out who her biological father is on her wedding day. Kim Geum-yeong from CNB Journal commented on Seohyun's improvement from her prior musical performances, praising her "natural acting" and "daring side" while Park Jeong-hwan from News1 claimed Seohyun's performance made the musical "all the more entertaining". Seohyun next played supporting roles in Chinese romantic film So I Married An Anti-fan and SBS's historical drama Moon Lovers: Scarlet Heart Ryeo; the latter earned her a Special Acting Award at the 2016 SBS Drama Awards.

In January 2017, Seohyun became the third Girls' Generation member to release a solo album, with the release of her debut extended play titled Don't Say No. For this record, Seohyun took full initiatives and control of the production process, shaping her own musical style–a fulfillment of what she was unable to do fully being in a larger musical group. Tamar Herman from Billboard noted the album presented a "new maturity" to the singer. Don't Say No debuted atop the South Korean Gaon Album Chart. To accompany her solo release, she held a concert residency titled "Love, Still – Seohyun", part of a series of concerts by SM Entertainment artists.

After taking part in OnStyle's web-drama Ruby Ruby Love, Seohyun next starred in MBC's weekend drama Bad Thief, Good Thief as Kang So-joo, a police-woman-turned-investigator who struggles to fight against the abusive officials. Her portrayal of the character earned her the Best New Actress award at the 2017 MBC Drama Awards.

In October 2017, Seohyun left SM Entertainment after her contract ended. Her future activities with Girls' Generation remain in discussion.

In 2018, Seohyun was cast as the female lead in MBC's melodrama The Time as the character Seol Ji-hyun, a bright and optimistic woman who became depressed after the tragic death of her sibling.

In March 2019, Seohyun signed with Namoo Actors. A year after signing with her new agency, she starred in the short drama Hello Dracula. She played the role of An-na, an elementary school teacher who hid her emotions from her mother since the day she came out to her as a lesbian. Later that year, she starred in the JTBC television series Private Lives as Cha Joo-eun, a swindler who has to choose a deceptive path to survive in Korea.

In February 2022, Seohyun made her debut in a movie as a lead actress in the Netflix original movie Love and Leashes, based on the webtoon Moral Sense. She played the character of Jung Jiwoo, a competent public relations team member who accidentally found out her co-worker's BDSM desires. Her portrayal of the role earned her a nomination for the Best New Actress award under the Film category at the 58th Baeksang Arts Awards. In April 2022, Seohyun renewed her contract with Namoo Actors.

In June 2022, Seohyun starred in the KBS fantasy romance series Jinxed at First, She played the character Lee Seul-bi, who has the special ability of seeing the future of any person she touches.

Seohyun has been announced to star in the film Holy Night: Demon Hunters and the Netflix original series Song of the Bandits. She is also announced to make a special appearance on the upcoming KBS series Curtain Call.

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