LEESOL is the oldest member of Starship Entertainment's five-member girl group KiiiKiii. Born on September 18, 2005, she is recognized by Korean media as the group's main rapper and lead vocalist. In June 2026, she served as an MC for the 35th Seoul Music Awards, and in the second half of the year, she actively promoted with the group for their third EP WhyKiiiKiii, took the stage for an NBA event in Macau, and held their first overseas fan concert in Tokyo.
| Category | Details |
|---|---|
| Stage Name | Leesol / LEESOL |
| Date of Birth | September 18, 2005 |
| Affiliation | Starship Entertainment · KiiiKiii |
| Position | Oldest member (Leader is Jiyu) |
| Group Debut | March 24, 2025, 1st EP UNCUT GEM |
| Notable Hosting Roles | Special MC for MBC Show! Music Core, MC for the 35th Seoul Music Awards |
Her official English name is stylized as LEESOL, though international media coverage often mixes spellings like Isol and Leesol. People frequently confuse the oldest member with the leader, but the leader of KiiiKiii is Jiyu.
In her February 2025 debut interview with ELLE, Leesol named her deep-toned rapping voice as her standout charm. She noted that her name is featured in the lyrics of their debut track "I DO ME" and expressed her excitement about leading the explosive chorus that drives the song's energy.
A month later, in an interview with Rolling Stone, Jiyu described Leesol's rapping voice as "powerful and refreshing." In the same feature, Leesol shared that she enjoys watching dramas, reading, and practicing Pilates. You can read the conversation in the original interview.
Stories from her school days were revealed in the same interview. Shuttling between school and cram schools, music was her only escape; late at night during exam periods, she would use the window as a mirror to stage her own solo "bedroom concerts." When asked what gave her the strength to hold on until debut, she credited her dream and her mother's support.
In February 2025, Starship unveiled KiiiKiii without prior notice, dropping the music video for "I DO ME" first. Her debut EP UNCUT GEM was released on March 24 and climbed to No. 1 on the Circle Album Chart, followed by her first music show win with "I DO ME" on MBC's Show! Music Core on April 5.
The most defining facet of Lee Sol's solo endeavors is her work as a host.
That same evening, Kiki took home a Bonsang (Main Award) for "404 (New Era)." Following their Rookie of the Year win in 2025, this marked their second consecutive year receiving an award at the ceremony, where they performed "Underdogs" and a retro version of "404 (New Era)." Throughout the night, Lee Sol seamlessly moved back and forth between the host podium and the winner's stage.
| Date | Details |
|---|---|
| January 26 | Released 2nd EP Delulu Pack; achieved 3 music show wins with "404 (New Era)" and earned the group's first No. 1 on the Melon TOP100 chart |
| March 14 | Appeared on JTBC's Knowing Bros alongside Hearts2Hearts |
| May 16–17 | Held their first fan concert, KiiiKiii FesTiiival, at Blue Square in Seoul |
| June 20 | Served as MC at the 35th Seoul Music Awards; won the Bonsang (Main Prize) |
| August 10 | Released 3rd EP WhyKiiiKiii, featuring the title track "Pop Off Pop Off" |
| September 13 | Performed the opening stage for the 2026 LCK Finals at KSPO Dome, Seoul |
| September 19 | Named Artist of the Year at the 2026 The Fact Music Awards |
| October 9–11 | Performed at the halftime show and NBA House for NBA China Games 2026 in Macau |
| October 25 | Held their first overseas fan concert, KiiiKiii FesTiiival JAPAN Edition, at Zepp Haneda in Tokyo (sold out) |
As of November 2, the release date for their next album has not been announced. Their agency stated that the group plans to make multiple appearances at year-end award shows.
| Release Date | Release | Type / Notes |
|---|---|---|
| 2025-02-24 | I DO ME | Pre-debut digital single |
| 2025-03-24 | UNCUT GEM | Debut EP, title track "I DO ME" |
| 2025-08-06 | DANCING ALONE | Digital single |
| 2025-11-04 | To Me From Me | Web novel Dear.X OST, produced by Tablo |
| 2026-01-26 | Delulu Pack | EP, title track "404 (New Era)" |
| 2026-04-11 | Go On | MBC drama The Grand Prince's Wife of the 21st Century OST Part.2, the group's first drama OST |
| 2026-08-10 | WhyKiiiKiii | EP, title track "Pop Off Pop Off" |
"I DO ME" is featured as both a pre-release single and on UNCUT GEM, while "To Me From Me" appears as both a standalone single and on Delulu Pack. Even if the same title appears twice, it refers to a single song. For the full discography, including remixes and OSTs, visit KiiiKiii Music.
Is E-Sol the leader of Kiki? No. The leader is Jiyu. Born in 2005, E-Sol is the oldest of the five members.
What is E-Sol's position? In Korean media, she is typically introduced as the main rapper and lead vocalist. She has noted her deep, mid-to-low vocal tone while rapping as her biggest charm.
Who did she host the Seoul Music Awards with? She hosted the 35th Seoul Music Awards on June 20, 2026, alongside Super Junior's Leeteuk and ZEROBASEONE's Park Gun-wook.
What is the age gap between her and the youngest member? The youngest member, KYA, was born in December 2010, making them five years apart.
Dates of birth and stage names follow the official Starship profile. Details regarding hobbies and school days are based on interviews conducted in February–March 2025. Last verified: November 2, 2026.