Kim Se-jeong is one of South Korea’s most versatile entertainers, seamlessly balancing a successful career as a singer and actress.
Known for her powerful vocals, charming personality, and impressive acting skills, she has become a household name both in K-pop and Korean dramas.
From survival show fame to starring in hit series, her journey is nothing short of inspiring.
Kim Se-jeong Quick Summary Table
| Attribute | Details |
|---|---|
| Full Name | Kim Se-jeong |
| Birth Date | August 28, 1996 |
| Age (2026) | 29 years |
| Birthplace | Gimje, North Jeolla, South Korea |
| Nationality | South Korean |
| Profession | Singer, Actress |
| Debut | 2016 (I.O.I) |
| Famous Groups | I.O.I, Gugudan |
| Popular Dramas | Business Proposal, The Uncanny Counter |
| Height | 164 cm (5’4”) |
| Weight | Approx. 48 kg |
| Net Worth (2026) | Estimated $3-5 million |
| Agency | Jellyfish Entertainment |
Early Life and Background
Kim Se-jeong was born on August 28, 1996, in Gimje, a small city in South Korea.
She grew up in a modest household, raised primarily by her mother. Despite financial struggles, Se-jeong showed strong determination from a young age.
Her passion for music began early. She participated in school performances and talent shows, where her vocal ability stood out.
Inspired by K-pop idols, she dreamed of becoming a singer and worked hard to make that dream a reality.
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Rise to Fame Through Produce 101
Se-jeong’s big break came in 2016 when she participated in the survival reality show Produce 101. Competing against 100 trainees, she quickly gained attention for her:
- Strong vocals
- Bright personality
- Leadership qualities
She finished in second place, earning a spot in the project girl group I.O.I. This marked the beginning of her professional career.
Her popularity skyrocketed during the show, and she became one of the most loved contestants due to her authenticity and emotional story.
Success with I.O.I and Gugudan
After debuting with I.O.I, Se-jeong enjoyed massive success. The group released hit songs and gained a huge fanbase in a short time.
Following I.O.I’s disbandment, she debuted again under Jellyfish Entertainment in the girl group Gugudan.
Although Gugudan didn’t achieve the same level of success, Se-jeong stood out as a strong vocalist and performer.
During this period, she also began exploring solo opportunities, which would later define her career.
Solo Music Career
Kim Se-jeong proved her versatility by launching a successful solo career. Her music often reflects her personality warm, emotional, and relatable.
Popular Songs:
- “Flower Way”
- “Plant”
- “Warning”
Her solo releases showcased her vocal strength and artistic growth. Unlike many idols, she actively participated in songwriting, adding authenticity to her music.
Transition to Acting
While many idols struggle to transition into acting, Se-jeong did it effortlessly. She made her acting debut in 2017 and quickly gained recognition.
Breakthrough Roles
School 2017
Her first major role introduced her as a promising actress.
The Uncanny Counter
This fantasy action drama became a huge hit. Se-jeong played Do Ha-na, a strong and mysterious character. Her performance received critical praise and significantly boosted her acting career.
Business Proposal
One of her most iconic roles came in this romantic comedy. Her portrayal of Shin Ha-ri was widely loved for its humor, charm, and relatability. The drama gained international popularity, making her a global star.
Acting Style and Strengths
Kim Se-jeong stands out because of her natural acting style. She brings emotional depth and realism to her roles.
Her strengths include:
- Expressive facial acting
- Strong emotional delivery
- Natural comedic timing
She can switch effortlessly between genres romance, comedy, and action making her one of the most versatile actresses in her generation.
Awards and Achievements
Over the years, Se-jeong has received multiple awards for both singing and acting.
Notable Achievements:
- Rising popularity from Produce 101
- Critical acclaim for The Uncanny Counter
- Global recognition for Business Proposal
- Multiple music chart-topping songs
Her ability to succeed in two industries sets her apart from many entertainers.
Personality and Public Image
Fans love Kim Se-jeong for her:
- Positive attitude
- Down-to-earth personality
- Hardworking nature
She often shares her struggles openly, making her relatable. Despite her fame, she remains humble and grounded.
She is also known for her strong work ethic, often juggling acting, singing, and variety shows.
Net Worth and Earnings
As of 2026, Kim Se-jeong’s estimated net worth is between $3 million and $5 million.
Income Sources:
- Music sales and concerts
- Acting in dramas
- Brand endorsements
- Variety show appearances
Her growing international popularity suggests her net worth will continue to rise.
Interesting Facts About Kim Se-jeong
- She almost gave up on becoming an idol before joining Produce 101
- She is known as one of the most genuine idols in K-pop
- She actively writes and composes music
- She has a strong bond with her fans
- She is praised for her emotional singing voice
Future Projects and Career Outlook
Kim Se-jeong continues to expand her career. With her proven talent in both music and acting, she is expected to:
- Take on more challenging acting roles
- Release new music projects
- Expand her global fanbase
Her ability to adapt and evolve ensures long-term success in the entertainment industry.
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Conclusion
Kim Se-jeong’s journey from a small-town girl to a top-tier entertainer is truly inspiring.
She has overcome challenges, proved her talent, and built a strong reputation in both K-pop and K-dramas.
Whether as a singer or actress, she continues to win hearts worldwide.
With her dedication and versatility, Kim Se-jeong is undoubtedly one of South Korea’s brightest stars.
People Also Ask About Kim Se-jeong
Is Kim Se-jeong still a K-pop idol?
Yes, Kim Se-jeong is still active as a K-pop solo artist, although she now focuses more on acting alongside her music career.
Is Sejeong still under Jellyfish?
Yes, Kim Se-jeong is currently signed under Jellyfish Entertainment.
Has Kim Se-jeong talked about marriage?
Kim Se-jeong has not publicly confirmed any marriage plans but has occasionally shared general thoughts about relationships in interviews.
Kim Sejeong height?
Kim Se-jeong is approximately 164 cm (5 feet 4 inches) tall.
Kim Sejeong husband?
Kim Se-jeong is not married and does not have a husband as of 2026.
Kim Sejeong age?
Kim Se-jeong is 29 years old as of 2026.
Kim Sejeong weight?
Her weight is estimated to be around 48 kg (106 lbs).
Kim Sejeong net worth?
Her estimated net worth is between $3 million and $5 million as of 2026.