Haseul

Cho Ha-seul, known mononymously as Haseul, is a South Korean singer and the leader of the project group ARTMS. She first gained attention as the third member revealed for the pre-debut project Loona in 2016, where she served as the group's leader and main vocalist. After Loona's contract disputes led to her departure from Blockberry Creative in 2023, she joined Modhaus and became the leader of ARTMS, a five-member group re-debuting with former Loona members. Known for her powerful vocals and calm leadership, Haseul has built a dedicated fanbase through her warm interactions and consistent musical output. As of 2026, she continues to promote with ARTMS, balancing group activities with occasional solo releases.[edit]

Growing up in Suncheon, Haseul was a devoted fan of Girls' Generation, which sparked her dream of becoming a singer. She participated in school festivals and singing competitions throughout her childhood. After graduating from Suncheon High School, she enrolled at Suncheon First University to study Practical Music. She auditioned for Blockberry Creative and was accepted, training for about three years before her debut. On December 8, 2016, she was revealed as the second member of the Loona pre-debut project with her solo single "Let Me In," a reinterpretation of a traditional Korean folk song that showcased her vocal range.[edit]

Haseul debuted as the leader of Loona's first sub-unit, Loona 1/3, on March 13, 2017, with the EP Love & Live. The full 12-member Loona debuted on August 19, 2018, with [+ +] and the single "Hi High." In February 2019, Loona earned their first music show win with "Butterfly." Haseul took a hiatus from January 2020 to May 2021 due to anxiety, returning for the album [&]. After winning her contract termination lawsuit against Blockberry Creative in January 2023, she joined Modhaus and was announced as a member of ARTMS in March 2023. ARTMS debuted on May 31, 2024, with the studio album Dall and lead single "Virtual Angel," with Haseul as leader. She released her first solo single under Modhaus, "Plastic Candy," on October 18, 2024. In 2025, ARTMS released their second EP

 and embarked on the world tour "Lunar S0ul."
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Haseul is often portrayed as the elegant, mature, and nurturing "mom" of her groups. Her aesthetic is soft, classic, and feminine, favoring simple but refined outfits. The media respects her for her vocal ability and leadership, especially in guiding her groups through difficult transitions. Fans appreciate her calm demeanor and warm interactions on platforms like Bubble and Instagram, where she posts behind-the-scenes content and heartfelt messages. Loona's fandom is called Orbit, while ARTMS's fandom is Ourii.[edit]

Haseul stands as a central pillar of the modern K-pop landscape, anchoring the group ARTMS with her distinctive vocal presence and steady leadership. While she commands significant attention within the industry, iFANN's Global Fame Engine has evaluated her current standing and determined that she does not currently hold a placement in the published rankings, meaning she is not listed among the Global Top 1,000 or any specific Top-100 scope list at this time. This absence from the top-tier charts reflects a period of transition following her move from Blockberry Creative to Modhaus, where she is building a new legacy rather than riding on established global peaks. Her primary audience remains deeply connected under the name Orbit, a designation documented by iFANN that unites fans across her tenure with Loona and her current work with ARTMS. Although research into specific solo fan rituals reveals no distinct campaigns or viral folklore unique solely to Haseul outside of the group's collective activities, the loyalty of Orbit is evident in their support for her artistic evolution. Fans have embraced her contributions to tracks like 'Love Poison' and 'Fragile Eyes', though these releases are viewed as part of the group's broader narrative rather than sparks for individual legendary incidents. The lack of documented crowd disruptions or street-shutdowns specifically attributed to her solo persona suggests her fame is cultivated through consistent musical output and her reputation as a nurturing leader rather than through sensational viral moments. As she balances group promotions with occasional solo endeavors, her influence grows steadily within the orbit of dedicated listeners who appreciate her calm demeanor and refined aesthetic.[edit]

Cho Ha-seul, known mononymously as Haseul, carries the representative color green and is associated with the white bird symbol. A former student of Practical Music at Suncheon First University, she often cites Girls' Generation's Taeyeon as her role model while drawing inspiration from The Little Prince for her creative direction. She maintains a personal habit of journaling, which serves as a private archive for her thoughts and lyrics. Her powerful live vocals are frequently highlighted in covers of ballads and R&B songs, showcasing her technical prowess. In the realm of legendary moments, Haseul participated in the group's world tour and contributed creatively to the cover of Taylor Swift's 'Detailed', demonstrating her deep involvement in the group's artistic choices. She also performed a soulful rendition of FKA Twigs' 'Tears In The Club' in September 2025, further cementing her versatility. While there are no specific viral stories of crowds fainting or streets shutting down exclusively for her, her release of the dreamy city pop track 'Love Poison' in September 2025 marked a significant artistic milestone that resonated with her growing international fanbase.[edit]

Haseul was born in Suncheon to her parents and has an older brother. She has not publicly shared details about her parents' occupations. She is known to be close with her family, particularly her brother. As of 2026, she lives in South Korea and has no public information about pets or her own household.[edit]

Haseul is closely associated with her former Loona members: Heejin, Hyunjin, Vivi, Yeojin, Kim Lip, Jinsoul, Choerry, Yves, Chuu, Go Won, and Olivia Hye. She works with Jaden Jeong, former creative director of Loona and CEO of Modhaus. Within ARTMS, she promotes alongside Heejin, Kim Lip, Jinsoul, and Choerry.[edit]

As of 2026, Haseul has no publicly confirmed romantic relationships. She has maintained a private personal life, focusing on her career and group activities. There are no reports of past or current partners, and she is currently single.[edit]

iFANN currently estimates Haseul's net worth in 2026 at $1 Million. Her income primarily comes from her share of ARTMS group activities, including album sales, concert tours, merchandise, and digital streaming royalties. As leader, she may receive a slightly higher percentage of group earnings. She also earns from individual activities such as her solo single "Plastic Candy" and potential variety show appearances. Her move to Modhaus and the success of ARTMS's debut album and world tour have contributed to her current financial standing. No verified figures from independent sources are available, and this estimate is based on typical earnings for mid-tier K-pop idols.[edit]