Son Hye-ju (손혜주) is the twelfth and last revealed member of LOONA with the name of Olivia Hye (올리비아 혜) and a member of its third sub-unit, LOONA / yyxy. She is a South Korean singer. In September 2023, she redebuted as HyeJu (혜주) in Loossemble under the CTDENM label.
![LOONA 1st World Tour : [LOONATHEWORLD] In Seoul Day2](/placeholder.svg?height=200&width=300)
![LOONA On Wave [LOONATHEWORLD : &]](https://image.tmdb.org/t/p/w500/jmEFZ24IJ5h7LVry6sSxlp25Vyj.jpg)
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![LOONA On Wave [LOONATHEWORLD : Midnight Festival]](https://image.tmdb.org/t/p/w500/kDmfF6hdW1BZFzGMDxXaiVSixx0.jpg)
![LOONA 1st World Tour : [LOONATHEWORLD] In Seoul Day1](https://image.tmdb.org/t/p/w500/n9u1wmGcofYSemLzrwjyTs0g9Br.jpg)
![Loossemble 1st FAN–CON [Make a voyage]](https://image.tmdb.org/t/p/w500/a8JF5aj8QnmCOmy70Vr9ucl0tBC.jpg)