Hyeju
Son Hye-ju, known mononymously as Hyeju and formerly as Olivia Hye, is a South Korean singer. She debuted as the twelfth and final member of the South Korean girl group Loona and later as a member of its sub-unit Loona yyxy. She is also a member of the k-pop girl group Loossemble.
Early life
Son Hye-ju was born on November 13, 2001, in Sillim-dong, Seoul, South Korea, and from a young age aspired to become a singer. After attending Chungshin Girls' High School alongside another LOONA member Choerry, she left to train at the FNC Academy before joining Blockberry Creative.Career
2018–2022: Debut with Loona and yyxy and legal disputes
Hyeju was selected as the twelfth and final member of Loona in early 2018 after a remarkably short training period of just one day at Blockberry Creative. She was revealed under the stage name Olivia Hye on March 17 and released her self-titled debut solo single album on March 30 with the main track "Egoist".On May 30 same year, she was introduced as a member of Loona's third sub-unit, Loona yyxy, which released the EP Beauty & the Beat and its title track "love4eva" featuring Grimes. She made her official debut with the full Loona group on August 20, 2018, with the EP | and the title track "Hi High".
On March 1, 2022, Hyeju released a remake of the song "I'll Be Your Spring " by Airman and Godak.
On November 28, JTBC Entertainment News reported that nine members of Loona, including Hyeju, had filed an application for a provisional injunction to suspend their exclusive contract with Blockberry Creative, following member Chuu's expulsion three days earlier. On June 16, the Seoul High Court ruled in Hyeju's favor, suspending her contract with Blockberry Creative.
2023–present: CTDENM and debut with Loossemble
On July 5, 2023, Hyeju, along with Loona members Yeojin, Gowon, Vivi and Hyunjin, signed exclusive contracts with CTDENM. The agency announced she would promote under her birth name, HyeJu, moving forward. On August 2, she was revealed as a member of the new girl group Loossemble, which debuted on September 15 with their self-titled EP. On November 29, 2024, CTDENM announced that the Loossemble members' exclusive contracts with the label had ended.On December 4, 2024, HyeJu attended a protest rally at the National Assembly demanding the impeachment of President Yoon Suk Yeol. She expressed her solidarity, stating, "Some people might feel uncomfortable that I'm voicing my opinion about this, but I am a citizen of this country before I am an idol, so I think this is the right thing to do. Let's be strong!"
On April 17, 2025, the Seoul Northern District Court officially terminated Hyeju's exclusive contract with Blockberry Creative.
Discography
Singles
Songwriting credits
All credits are adapted from the Korea Music Copyright Association, unless cited otherwise.| Title | Year | Artist | Album | Lyrics | Music |
| "Real world" | 2023 | Loossemble | Loossemble | ||
| "Girls' Night" | 2024 | Loossemble | One of a Kind | ||
| "Secret Diary" | 2024 | Loossemble | TTYL |
Filmography
| Year | Title | Role | |
| 2021 | The Fishermen and the City | Herself | |
| 2022 | Girl's Re:Verse | Contestant |