Kim Hyunjin

Kim Hyun-jin (, ; born November 15, 2000), known mononymously as Hyunjin (occasionally stylized as HyunJin) is a South Korean singer and drummer. She is a member of Loona, its sub-unit Loona 1/3, and leader of its spinoff Loossemble. She was also the drummer for the band Latency until her departure in May 2026 for health reasons.

Early life Kim Hyun-jin was born on November 15, 2000, in Dunchon-dong, Gangdong District, Seoul, South Korea. She has two older brothers. One brother is a vocalist for the band 'BI-O-NE', and the other is an actor. She graduated from Hansung Girls High School in 2019.

In 2013, when she was thirteen years old, Hyunjin appeared on the 40th episode of Three Idiots, a Korean reality TV show. She was introduced as a natural beauty and demonstrated her skills in skipping rope.

Career 2016–2022: Debut with Loona and TV show appearances

On October 23, 2016, the first "Who's Next Girl?" teaser was posted by BlockBerry Creative, and Hyunjin was fully revealed as the second member of Loona on October 28. She released her debut single album HyunJin with her solo single "Around You" and second track "I'll Be There" featuring first member Heejin on November 17. In December, Hyunjin and Heejin were featured on third Loona member Haseul's debut single album for the song "The Carol".

On January 16, 2017, Hyunjin collaborated again with Heejin on the song "My Sunday", released on fourth Loona member Yeojin's debut single album. On February 14, Hyunjin was revealed to be a member of Loona's first sub-unit Loona 1/3. The group debuted on March 13 with their extended play Love & Live. In October, Hyunjin, alongside fellow Loona members Heejin and Haseul, auditioned for the survival reality show Mix Nine. Hyunjin passed the audition and became a contestant as a representative of BlockBerry Creative and Loona. She made it to the final episode, but was eliminated and did not make the final lineup.

On August 20, 2018, Hyunjin officially debuted with Loona as a full group with the release of their debut extended play [+ +]. On September 27, 2020, Hyunjin appeared on South Korean television program King of Masked Singer as a contestant with the stage name Jade Bead. On May 9, Hyunjin and ViVi won their injunctions against BlockBerry Creative and terminated their exclusive contracts. On June 12, Hyunjin and ViVi officially signed with CTDENM, a newly formed company founded by BlockBerry Creative's former planning division director Yoon Doyeon.

On August 2, Hyunjin was revealed as an official member of Loossemble, alongside Loona members ViVi, Go Won, Yeojin, and Hyeju, with Hyunjin as the leader of the group. The group debuted on September 15, with their self-titled extended play.

On November 29, 2024, CTDENM announced that the Loossemble members' exclusive contracts with the label had ended.

2025–present: Solo activities, self-management, TDYA, and Latency On June 14, 2025, Hyunjin announced her first fan meeting to be held at K-Pop Stage in Hongdae, Seoul on June 20, with tickets selling out quickly after opening. That same month, Hyunjin founded her own independent artist label named Triangle ENM. She stated the name came from the vertices of a triangle representing the self, reality, and one's dreams, and that she plans to recruit other artists in the future. On August 14, through the show, Hyunjin debuted as a member of TDYA with the single "Keep the Light" composed by singer-songwriter Ejae and written by fellow TDYA member Mirani. On August 15, the group performed the song for the first time at Gwanghwamun Square in Jongno-gu, Seoul in a set of performances celebrating the 80th National Liberation Day of Korea.

On October 15, the web series Motchuh Do Rock! began, following Hyunjin as a drummer forming the band Latency alongside Youtuber Fingerstylish, also known as Heeyeon, and Cignature members Jeewon, Semi, and Haeun. On November 18, Oddinary Records announced Latency would debut in January 2026. Latency debuted on January 8, 2026 with "It Was Love".

On May 22, Hyunjin announced she was withdrawing from Latency to focus on her health.

Discography

Singles + List of singles as lead artist, showing year released and name of the album Title Year Album "Around You" 2016 HyunJin "Like A Star" 2018 Mix Nine Part 4 "OMG" Mix Nine Part 6 "Thank You" 2024

Songwriting credits All credits are adapted from the Korea Music Copyright Association, unless cited otherwise. Song Year Artist Album "Day by Day" 2023 Loossemble Loossemble "Starlight" 2024 One of a Kind "Confessions (Cotton Candy)" TTYL "Starry Night" 2026 Latency Late O'Clock

Filmography

Television shows Year Name Role Notes 2017–2018 Mix Nine Contestant 2022 Catharsis/Qatarsis Panelist

Web series Year Name Role 2017–2018 Do You Remember When We First Met? Kim HyunJin 2025 Another Day of Debut Training Herself

Music video appearances Year Name Artist 2017 Better Than Me Sojung 2024 Still Yours Parc Jae-jung

Awards and nominations

+ Name of the award ceremony, year presented, category, and the result of the nomination Award ceremony Year Category Result Korea Best Brand Awards 2025 Female Rookie Singer