Kim Se-jeong

Pop Singer

Kim Se-jeong was born on August 28th, 1996 in Gimje, North Jeolla, South Korea and is the Pop Singer from South Korea. Discover Kim Se-jeong's biography, age, height, physical stats, dating/affair, family, hobbies, education, career updates, and networth at the age of 26 years old.

Other Names / Nick Names
Date of Birth
August 28, 1996
South Korea
Place of Birth
Gimje, North Jeolla, South Korea
26 years old
Zodiac Sign
Reality Television Participant, Singer
Kim Se-jeong Height, Weight, Eye Color and Hair Color

At 26 years old, Kim Se-jeong has this physical status:

Hair Color
Dark Brown
Eye Color
Dark Brown
Not Available
Kim Se-jeong Religion, Education, and Hobbies
Not Available
Not Available
Hanyang Women’s University
Kim Se-jeong Spouse(s), Children, Affair, Parents, and Family
Not Available
Not Available
Dating / Affair
Not Available
Not Available
About Kim Se-jeong

Kim Se-jeong (born August 28, 1996), better known by the mononym Sejeong, is a South Korean singer and actress.

She is best known as the runner-up contestant in Produce 101, a former member of the girl group I.O.I, and as a member of Gugudan and its subgroup Gugudan Semina.

She was a co-host of the variety show Talents for Sale in 2016 and played the leading role in the teen drama, School 2017.

Early life and education

Kim Se-jeong was born on August 28, 1996, in Gimje, North Jeolla Province, but moved to Anyang, Gyeonggi where she stayed with her mother and older brother at her aunt's house. Her parents split when she was a child, leaving her mother to single-handedly raise her and her brother. She has previously stated that she did not contact her father until she was in her third year of middle school. Kim is currently studying practical music at Hanyang Women's University.


In 2012, Kim participated in the second season of competition television show K-pop Star 2 at the age of 16. She did not make it through the second round ranking audition, but Yang Hyun-suk brought her back as a wildcard for the casting round, where Kim performed a duet of Taeyang's "I Need A Girl" with fellow contestant Jo Yoo-min. Yang cast the both of them, grouping Kim with contestants Nicole Curry and Lee Soo-kyung for the final casting round. At the end of the round, she was eliminated from the competition.

In January 2016, Kim represented Jellyfish Entertainment together with fellow trainees Kim Na-young and Kang Mi-na on the reality survival show Produce 101, where they competed for the chance to debut in an Mnet project girl group. All three were assigned to "Group A" in the first episode of the program and Kim achieved the first-place ranking on several episodes, earning the nickname "God Sejeong". The program came to an end on April 1, 2016, and the final line-up of I.O.I, consisting of the top 11 poll-winners, was announced. Kim was the runner-up contestant, garnering 525,352 votes, officially becoming a member of the girl group I.O.I. They debuted on May 4, 2016 with the lead single "Dream Girls" from the album Chrysalis. I.O.I promoted for less than a year and officially disbanded in January 2017. The members returned to their respective agencies at the end of their contracts.

On June 10, 2016, YMC Entertainment revealed that Kim would not be taking part in I.O.I's unit promotions but would instead return to her agency to debut and promote with its upcoming girl group. On June 28, 2016, while still a member of I.O.I, Kim with her fellow I.O.I member Kang Mi-na officially debuted as members of South Korean girl group Gugudan with the lead single "Wonderland". On November 23, 2016, Kim participated in Jellyfish Entertainment's music channel project Jelly Box and released the single "Flower Way", produced by Zico, along with a music video. The single peaked at number two on the Gaon Digital Chart. Kim received her first music program trophy as a solo artist with "Flower Way" on the November 30 episode of Show Champion, making her one of the fastest soloist to win in a music show. On January 12, 2017, Kim released the song "If Only" for the soundtrack of the drama The Legend of the Blue Sea. Later that year, she collaborated with Lee Tae-il of Block B for the digital single "I Like You, I Don't", which charted at number 8 in Gaon Music Charts. Kim also collaborated with NCT's Doyoung titled "Star Blossom" for SM Station Season 2 music project.

Aside from singing, Kim established herself as an "ace" in variety shows with her multiple streak guesting in popular entertainment programs. Kim hosted the new KBS show Talents for Sale alongside Kim Jong-kook, Lee Seo-jin and Noh Hong-chul where she displayed a variety of talents on the show and earned the nickname 'Variety Cheat Key'. She would later get a "Rookie Variety" nomination in the 15th KBS Entertainment Awards. In March 2017, she joined the reality-documentary Law of the Jungle in Sumatra headed by the chief Kim Byung-man in a remote area in Sumatra, Indonesia. Kim displayed her athletic and survival skills such as diving and fishing for several episodes earning her a "survival ace" nickname by the producers. She was awarded with a Best Challenge Award on the 11th SBS Entertainment Awards. Later on, Kim once again showed her physical skills and was dubbed as "Wonder Sejeong" when she joined the Boat Horn Clenched Fists crew on a fishing mission in Imjado, an island in county in South Jeolla Province with Kim Jong-min, Lee Sangmin, Kim Byung-man whom she worked with in Law of the Jungle and among others.

In July 2017, she took on her first major acting role as the lead, Ra Eun-ho, in KBS2's teen drama School 2017 where she won a "Best New Actress" award at the 31st KBS Drama Awards for her performance as the bubbly and charismatic Eun-ho. She also sung the soundtrack for the series with her group Gugudan titled "Believe in this Moment". In September 2017, it was confirmed that Kim would be a fixed cast member in Netflix's first Korean variety show Busted! alongside variety veterans Yoo Jae-suk, Kim Jong-min, Lee Kwang-soo, Ahn Jae-wook, actress Park Min-young and fellow idol Oh Se-hun. The variety show spanned for three seasons with Lee Seung-gi joining the cast in its second season. That month, she also became a permanent MC for OnStyle's Get It Beauty alongside Honey Lee, Lee Se-young and Sandara Park.In January 2018, Kim became the first special co-host of Baek Jong-won's Alley Restaurant a cooking-variety program hosted by celebrity chef Baek Jong-won.

Kim and fellow Jellyfish Entertainment artist LEO of VIXX were chosen to sing the official cheer song entitled "We, the Reds" for the South Korea national football team for the 2018 World Cup Tournament. In June 2018, she was cast as one of the members of MDRS team led by Kim Byung-man in their third time working together, with actress Ha Ji-won and 2 PM's Nichkhun for tvN's sci-fi variety program Galileo: Awakened Universe that explores the idea of life on Mars. All the members flew to Utah, United States to the Mars Desert Research Station (MDRS), the largest and longest-running Mars surface simulation facility in the world. They were the first Korean entertainment crew to set foot on the Research Station.

In June 2018, a Gugudan subgroup named Gugudan SeMiNa was formed with Kim and fellow Produce 101 alumn members Mina and Nayoung. They debuted on July 10, 2018, with the single "SeMiNa". In September 2018, Kim released the song "Lover" for the soundtrack of the drama Mr. Sunshine.

In 2019, Kim went on to take her second leading role in the mystery romantic-comedy drama I Wanna Hear Your Song where she played a timpanist who lost her memories due to traumatic events. She would later win the K-Drama Hallyu Star Award on the 2019 KBS Drama Awards for the role. After a year of hiatus as a singer and three years since her solo debut song, Kim released the single "Tunnel" in collaboration with Dingo Music on December 2, 2019, followed by her first self-written and composed extended play titled Plant (Korean: 화분; RR: Hwabun), with its lead single of the same name, released on March 17, 2020. She received her second music award show trophy on The Show for her single. She wrote and composed all the tracks from her EP, except for the lead single. Kim released the song "All of My Days" for the soundtrack of the drama Crash Landing on You, which charted at number 50 on the Gaon Digital Chart, followed by "What My Heart Says" for the soundtrack of Record of Youth. She later released the digital single "Whale" on August 17, 2020.

Kim then went on to make her musical debut as the female lead in Return: The Promise of the Day, an original army musical that deals with the topic of excavating the remains of the heroic soldiers who sacrificed themselves to protect their country during the Korean War. On July 15, 2020, she was confirmed to star in the fantasy thriller drama The Uncanny Counter, where she played the role of Do Ha-na. Before filming the drama, Kim together with her co-stars trained in an action school to prepare for their respective roles. The drama went on to become the highest-rated OCN series of all time, its immense popularity also led to a renewal for season 2. Kim also contributed to the drama's OST through her self-written and composed song "Meet Again” which charted at 147 on the Gaon Digital chart. After two years of inactivity, on December 31, 2020, Jellyfish Entertainment officially disbanded Gugudan and on May 11, 2021, Kim renewed her contract with the company as a solo artist and actress.

On March 9, 2021, it was revealed that Kim was in the middle of preparing for a comeback. On March 29, 2021, Kim released her second self-written and composed EP titled I'm with its lead single "Warning." Later that year, she was also featured in MC Mong's Flower 9 album with the song "Can I Go Back." On April 5, 2021, it was announced that Kim would make her second musical appearance through Red Book, a musical drama about women's growth that seeks pride and dignity in the Victorian era. She played Anna, the protagonist of the story, who defied all odds against prejudice about women in the Victorian era. Kim performed from June 7 to August 24, 2021, for a total of 28 shows. Red Book Musical received a viewer rating of 9.9 out of 10, and currently holds the highest viewer rating among the top 20 sales for 2021 Musicals. The musical would later on win the Best Picture Award, as well as Best New Musical Actress nomination for Kim at the 2022 Korean Musical Awards.

On May 4, 2021, Kim and the members of I.O.I celebrated their fifth debut anniversary with a reunion live stream show called "Yes, I Love It!". On July 23, 2021, Kim collaborated with Municon and released the digital single "Baby I Love U", which is a remake of the same song by Japanese singer TEE. At the end of 2021, Kim hosted the 2021 MBC Entertainment Awards with Jun Hyun-moo and Lee Sang-yi.

In February 2022, Kim returned to the small screen as the female lead for the SBS romantic comedy Business Proposal alongside Ahn Hyo-seop. In March, it was confirmed that Kim would star in the television series Today's Webtoon alongside Choi Daniel and Nam Yoon-su. Kim's first solo fan meeting was scheduled to be held at Yes24 Live Hall on March 26, but was later postponed to April 23, after she tested positive for COVID-19. Kim will hold her first overseas fan meeting in Jakarta, Indonesia and Bangkok, Thailand, on November 4 and 6. On November 11, Kim will hold a fan meeting in Japan.

Personal life

Before her debut, Kim participated in track and field competitions in elementary and middle school and was part of the Theatre Club in her high school. Kim passed Jellyfish Entertainment's auditions through a competition of 3,000 to 1 ratio, thus becoming a trainee. She majored in Practical Music and was a trainee for two years before joining Produce 101. While being a trainee on the show, Kim earned the nickname “God Sejeong” for consistently ranking first place and never ranking below second place. Since then, the nickname has been widely used for Kim excelling in various fields.

Kim is oftentimes called the icon of "Flower Way" through broadcasts and media after her famous speech to her mother, "I will only let you walk on the flower road from now on," during the first elimination round of Produce 101 where she won first place. Her first solo song "Flower Way" was based on the letter Kim wrote for her mother in Talents for Sale where she was a host.