Heejin

Heejin is a South Korean singer and dancer. She is known for her role as the first revealed member of the girl group Loona and is now a member of the group ARTMS, formed under Modhaus in 2024. Heejin is a main vocalist and lead dancer, recognized for her vibrant stage presence and stable live vocals. Her solo single "Algorithm" showcased a more mature sound, and she continues to be active in touring and variety content. Fans often describe her as a "performance ace" who balances cute visuals with sharp dance execution. She has participated in multiple world tours and is currently promoting ARTMS's first studio album while engaging in solo activities including digital singles and a web variety series.[edit]

Jeon Hee-jin, known mononymously as Heejin, was born on October 19, 2000, in Daejeon, South Korea. Growing up in Daejeon, the fifth-largest city in the country, she shared her home with her parents and a younger sister. From a very early age, Heejin exhibited a profound connection to music, finding inspiration in prominent artists like Girls' Generation and IU. This nascent passion quickly translated into active participation in school talent shows and various local singing contests, where she began to hone her performance skills. Recognizing her burgeoning talent and serious interest, Heejin began taking formal vocal and dance lessons during her middle school years, laying the groundwork for her future ambitions.

Driven by a clear determination to become a K-pop idol, Heejin pursued her dream diligently. She successfully auditioned for Blockberry Creative, earning a coveted spot as a trainee. Alongside her rigorous training schedule, she continued her education at Hanlim Multi Art School, where she majored in Practical Music, eventually graduating in 2019. After approximately two years of intensive training, her dedication paid off significantly. In a pivotal moment for her career, Heejin was selected as the very first member to be revealed for Loona's innovative pre-debut project in September 2016. This early exposure was instrumental in establishing her initial prominence and allowed her to begin building a fanbase even before the group's official debut. Her solo debut single, "Vivid," released on October 5, 2016, further solidified her introduction. Produced by the same acclaimed team responsible for tracks by EXO and Red Velvet, "Vivid" not only showcased her individual talent but also heralded the commencement of Loona's distinctive 18-month pre-debut rollout.[edit]

Heejin's career breakthrough came in October 2016 when she released her debut solo single "Vivid," accompanied by a colorful music video that showcased her energetic persona and vocal ability. In January 2017, she debuted as a member of Loona 1/3, the group's first sub-unit, with the EP "Love & Live." Heejin officially debuted with Loona in August 2018 with the EP "+ +" and lead single "Hi High." The group quickly gained a global following, and Heejin participated in multiple world tours. In 2019, Loona embarked on their first world tour "Loona – The International Tour." In 2020, Loona released the album "[12:00]" featuring the single "Why Not?" Heejin contributed vocals and choreography. In 2021, Loona's EP "&" was released, and Heejin appeared on variety shows like "Knowing Bros." In 2022, Loona's full-length album "Flip That" was released, with Heejin featuring in the lead single. After Loona's hiatus in 2023 due to legal disputes with Blockberry Creative, Heejin signed with Modhaus and debuted with ARTMS in 2024. That same year, she released her solo single "Algorithm," which charted on Korean music platforms and was praised for its experimental production and mature lyrics. In 2025, ARTMS released their first studio album and embarked on an Asia tour, with Heejin continuing solo activities including OSTs and collaborations. In 2026, ARTMS has been promoting their first studio album and touring internationally, and Heejin released a digital single in early 2026.[edit]

Heejin is known for a "bright and chic" image, blending cute visuals with charismatic stage presence. Korean media often highlights her visuals and dance skills, calling her a "visual member" and "performance ace." Her fashion style leans toward casual streetwear with feminine accents. On Instagram, she posts behind-the-scenes photos and lifestyle content with short, affectionate captions. Heejin shares the group fandom name "Orbit" (from Loona) and "MOD" (from ARTMS). Fans organize concert projects like coordinated light stick colors and banner events, often recreating her signature heart gesture. Heejin's appeal lies in her relatable yet polished persona, and she is regarded as a stable live performer. Her Instagram handle is @0ct0ber19, a reference to her birthday, and she has approximately 1.2 million followers as of 2026. Heejin's fans are known for organizing "fan projects" during concerts, and her signature heart gesture is often recreated by fans.[edit]

Heejin's journey from the first revealed member of LOONA to a leading force in ARTMS has cultivated a fiercely loyal following known as Orbit. This collective is celebrated for its resilience and organizational prowess, having mobilized massive digital campaigns during the group's legal hiatus and continuing to support Heejin's solo endeavors with coordinated streaming parties and global birthday advertisements. Fans frequently organize charity drives in her name and utilize specific hashtags to chart her releases like "Algorithm" and "sAvioR," creating a vibrant ecosystem of support that bridges the gap between her past identity and current artistic evolution. While she shares this fanbase with her fellow members, the community often highlights her unique nickname "HeeJin-ie" and her golden aesthetic as central identifiers within their shared lore.

iFANN has evaluated Heejin's global standing, yet the Global Fame Engine currently places her outside the published rankings, meaning she holds no placement in the Global Top 1,000 or any scope-specific top lists at this time. Despite the absence of a numeric rank, her influence remains palpable through sustained engagement metrics and the enduring popularity of her work since 2016. The lack of a formal ranking reflects a dynamic landscape where fame fluctuates based on recent activity rather than historical legacy alone. Her status as a pioneer who navigated a seven-year wait to release her own music has secured her a permanent place in K-pop history, even if current algorithmic models have not assigned a specific position.[edit]

Heejin was the first member revealed for LOONA, serving as the face of the group's early identity. She stands approximately 162 cm tall and is famous for her distinctive eye smile. A dedicated fan of Studio Ghibli films, she often references them in interviews, while tteokbokki remains her favorite food. Although she writes lyrics in her free time, she has not publicly released self-composed songs. Heejin does not maintain personal Twitter or YouTube channels, relying instead on ARTMS group accounts for official content, and she has not been confirmed as a brand ambassador for any major corporation. While she has appeared in group pictorials for magazines like *The Star* and *Dazed Korea*, she has not received individual awards or appeared on solo greatest-of-all-time lists.

A legendary chapter in her career involves the "seven-year wait" narrative, which culminated in the 2023 release of her solo EP *K*. Fans view the title track "Algorithm" as a symbolic victory over industry bureaucracy, turning the song into an anthem of resilience. Another iconic moment occurred in November 2025 with the rock-infused single "sAvioR," where her shift to a harder sound was described by attendees as a rebirth of her artistic identity. Within the fandom, a recurring story classifies her as the "Golden Flower" archetype, symbolizing warmth and leadership among the ARTMS members in a mythology that new fans are taught to understand.[edit]

Heejin was born to supportive parents in Daejeon. She has a younger sister who stays out of the public eye. Heejin often mentions her family in interviews, crediting them for encouraging her musical pursuits. Her parents recognized her passion for music and encouraged her to pursue formal training in singing and dancing during her middle school years. As of 2026, she lives in Seoul, sharing a dorm with fellow ARTMS members. She has not publicly disclosed any pets.[edit]

Heejin has worked closely with producers like Jaden Jeong, the former creative director for Loona. She collaborates regularly with fellow ARTMS members Haseul, Kim Lip, Jinsoul, and Choerry. During her Loona days, she was particularly active in the sub-unit Loona 1/3 alongside Hyunjin, Haseul, and Vivi. Her training was overseen by staff at Blockberry Creative and later Modhaus.[edit]

As of 2026, Heejin has no publicly confirmed romantic relationships. K-pop idols, particularly female idols, often maintain strict privacy regarding dating to protect their careers and fan relationships. Heejin has never been publicly rumored to be in a relationship, engaged, married, or divorced. She has not mentioned any dating history in interviews. Her latest reported status is single, with no known partner. Occasional rumors linking her to fellow idols have not been verified by credible sources or confirmed by Heejin or her agency.[edit]

Heejin's net worth is not publicly disclosed by any credible financial source. Unverified fan estimates range from $500,000 to $1 million, but no reputable outlet like Forbes or Bloomberg has published a figure. Per iFANN's editorial analysis, the total value is estimated at $1 Million. Her primary income sources are group activities with ARTMS, including album sales, concert tours, and merchandise revenue. She also earns from solo digital singles and OSTs. Heejin has not been confirmed as a brand ambassador for any major brand, and no public information exists about real estate holdings or business ventures. As a K-pop idol, her earnings are supplemented by appearances on variety shows and fan meeting events. The speculative estimates reflect her career since 2016, with potential growth following ARTMS's debut in 2024 and the group's successful Asia tour in 2025. No reliable net worth figure exists; estimates should be treated as unconfirmed.[edit]