
Jisook
South KoreaMember of Rainbow
Also known as: Kim Ji-sook, Jisook (Rainbow)
Birthday
July 18, 1990
Birth Sign
Cancer
Birthplace
Paldal-gu, Suwon-si, Gyeonggi-do, South Korea
Age
36 years old
About
Kim Ji-sook is a South Korean singer and actress best known as the lead vocalist of the K-pop girl group Rainbow. Born in Paldal-gu, Suwon-si, she established herself with powerful vocals and a resilient stage presence during the group's active years from 2009 to 2016.
As of 2026, Jisook continues her career as a solo artist under Starit Entertainment while maintaining an active social media presence with over 250,000 followers on Instagram. She balances her musical pursuits with acting roles in dramas like Dramaworld and films such as Imitation, showcasing her versatility beyond the idol system.
Early Life & Background
Jisook grew up in Paldal-gu, Suwon-si, where she developed a deep love for music early on. Before stepping into the spotlight of the K-pop industry, she pursued formal education by majoring in music at Hanyang Women's University. Her passion for rock music led her to join a local rock band, where she honed her vocal skills and performance abilities before entering the competitive training system of Starship Entertainment.
Her path changed significantly in 2009 when she was selected to debut as part of the six-member girl group Rainbow. The transition from university student and rock band member to K-pop idol marked the beginning of a high-pressure journey. Just months after her debut, the family faced a profound tragedy when her mother passed away from a chronic disease on July 4, 2011. This personal loss occurred during the group's initial rise to fame, adding a layer of emotional depth to her public performances and shaping her resilience as an artist.
Career Growth
Debuting in June 2009 with the single Gossip Girl, Jisook quickly became recognized for her strong vocal power within Rainbow. The group found immediate success with hits like A in 2010, which secured multiple wins on music shows including Music Bank and Inkigayo. In 2011, she further expanded her reach as part of the sub-unit Rainbow Pixie alongside Seungah and Hyunyoung, releasing the track Mach and performing other songs like Ding Dong Ding.
Following the group's disbandment in January 2016, Jisook signed with Dmost Entertainment in 2017 before moving to Starit Entertainment, where she has remained active. Her career diversified into acting with notable roles in the drama Heartbeat (2010), the web series Dramaworld (2016), and the film Imitation (2021). In recent years, she has focused on variety show appearances and solo performances, leveraging her experience to maintain a steady connection with fans through social media platforms.
Career Timeline
Public Image & Style
Jisook projects a "girl next door" aesthetic combined with a professional demeanor that reflects her long tenure in the industry. Her public persona is defined by warmth and approachability, often shared through candid photos of her daily life and travel on Instagram. Media outlets frequently describe her voice as having a "clear" quality, setting her apart in the crowded K-pop landscape.
She has successfully transitioned from the high-energy image of an idol to a more mature, relatable figure. Her willingness to engage in variety shows and her casual social media interactions have helped her build a reputation as a grounded artist who values authenticity over hype. This shift has allowed her to maintain relevance even after her group disbanded.
Fame & Fandom (iFAMOUS Rankings)
Jisook does not currently hold a published placement in the iFANN Global Fame Rankings or the September 2026 September 2026 iFAMOUS Rankings flagship list, meaning iFANN has not yet collected sufficient data to rank her against global celebrities. Despite the lack of a formal ranking, her status remains secure within the K-pop community as a veteran artist.
Fans of Rainbow, who refer to themselves simply as "Rainbow," remain highly supportive of her individual endeavors. Although there is no distinct fandom name for her solo work, her fanbase actively streams her tracks and promotes her acting roles. The community celebrates her longevity and resilience, particularly remembering how she navigated her career following the loss of her mother. Fan campaigns often focus on honoring the group's legacy while cheering for her continued success as a solo performer.
Interesting Facts and Legends
Before her K-pop debut, Jisook was an active member of a rock band, a fact that often surprises fans who know her primarily for pop ballads. She shares a close bond with her sister, Kim Jaemae, whom she frequently mentions in casual posts on her social media channels. Fans often compare her clear, warm vocal tone to that of Girls' Generation's Taeyeon, noting a similar ability to convey emotion through song.
One of the most enduring stories among her fanbase involves her determination to continue performing after her mother's death in 2011. While not a viral moment in the traditional sense, this narrative of overcoming personal grief while pursuing a demanding career has become a core part of her legacy. In 2026, she surprised fans by celebrating her birthday at the FIFA World Cup third-place match, describing the event as a "goal party" rather than just a birthday celebration.
Notable Quotes
“More of a goal party than a birthday party.”
“I want to keep singing and acting for as long as I can.”
Family & Personal Life
Kim Ji-sook was born into a family in Paldal-gu, Suwon-si, where she spent her formative years. She has one sister, Kim Jaemae, who appears occasionally in her social media updates, highlighting a close familial bond. The family experienced a significant tragedy in 2011 when her mother passed away from a chronic disease, an event that deeply affected Jisook during the peak of Rainbow's early success.
In her personal life today, Jisook is married to Lee, a programmer she met prior to her marriage announcement. They tied the knot in October 2020 after publicly confirming their engagement earlier that year. The couple maintains a relatively private life, focusing on their relationship away from the intense scrutiny of the entertainment industry.
Notable Connections
Lee (Husband), Lee Doo-hee (Friend), Seungah (Bandmate), Hyunyoung (Bandmate), Taeyeon (Comparison)
Relationships & Dating History
Jisook's public dating history is brief but significant, centering around her marriage to Lee, a programmer. Details regarding previous romantic relationships are not widely documented in credible sources, though she has been compared vocally to Girls' Generation's Taeyeon without confirmed dating ties. The couple announced their engagement via the reality show Don't Be Jealous in June 2020, sharing their story with fans before tying the knot in October of that year.
As of 2026, Jisook remains happily married to Lee. The couple keeps their private life largely out of the spotlight, focusing on their relationship away from the camera. Recent reports from mid-2026 show them enjoying leisure time together, including attending major sporting events like the FIFA World Cup, which highlights their balanced life outside the entertainment industry.
- MarriedLee2020 - presentCurrentProgrammer boyfriend turned husband; engaged in June 2020, married in October 2020.
Salary, Net Worth In 2026
$1.2 Million
iFANN Editorial Team estimate
iFANN currently estimates Jisook's net worth at approximately $1.2 million based on her earnings from nearly two decades in the entertainment industry. Her wealth stems from a combination of sources including residuals from Rainbow's discography, solo music releases, acting fees from dramas and films, and occasional endorsement deals.
Since the disbandment of Rainbow in 2016, she has maintained financial stability through selective projects and brand partnerships. As of 2026, her income continues to flow from streaming royalties and live performances, though specific figures for individual contracts remain private. The estate of her late mother does not factor into her current assets, but the family's support system has helped her navigate the business side of her career independently.
Awards Won (2)
While Jisook won numerous awards as part of Rainbow, including music show victories for A and Mach, specific individual accolades solely attributed to her are not extensively listed in public records. Her contributions to the group's chart-topping success on programs like Music Bank and Inkigayo remain her primary award-related achievements.
2010 · Song of the Week
A
2010 · Song of the Week
A
Known For
Rainbow
2009 · Lead Vocalist
Heartbeat
2010 · Actress
Dramaworld
2016 · Actress
Imitation
2021 · Actress
Keywords
Sources
Quick Facts
- Profession
- Singer, Actress
- Born
- July 18, 1990
- Birthplace
- Suwon, South Korea
- Birth Sign
- Cancer
- Spouse
- Lee
- Group
- Rainbow
Personal Details
- Full Name
- Kim Ji-sook
- Spouse
- Lee
- Children
- Education
- Hanyang Women's University (now Hanyang Cyber University)
Filmography
4
Total
1
Film
3
TV
Frequently Asked Questions
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