Wong Ka-Hei (黃珈熙), or famously known as the mononym ViVi (비비), is the fifth revealed member of LOONA and a member of its first sub-unit, LOONA 1/3. She is a Chinese singer and model. In September 2023, she redebuted in Loossemble under the CTDENM label.
![Loossemble 1st FAN–CON [Make a voyage] poster](/_next/image?url=https%3A%2F%2Fimage.tmdb.org%2Ft%2Fp%2Fw500%2FyVHMqeZnQJj5XL3RqrJJYblHUN8.jpg&w=1920&q=75)
![LOONA 1st World Tour : [LOONATHEWORLD] In Seoul Day1 poster](/_next/image?url=https%3A%2F%2Fimage.tmdb.org%2Ft%2Fp%2Fw500%2FwL1JRmB8PPrOKVlMjrrR6CDTJBV.jpg&w=1920&q=75)
![LOOΠΔ On Wave [LOOΠΔTHEWORLD : &] poster](/_next/image?url=https%3A%2F%2Fimage.tmdb.org%2Ft%2Fp%2Fw500%2FygcTQ4fgZpgbb65hqOAjLHmLyJA.jpg&w=1920&q=75)
![LOONA On Wave [LOONATHEWORLD : &] poster](/_next/image?url=https%3A%2F%2Fimage.tmdb.org%2Ft%2Fp%2Fw500%2FifG7Zpt6gdWlDlgrm0vjTRMbdTV.jpg&w=1920&q=75)
![LOONA Premier Greeting [D&D] poster](/_next/image?url=https%3A%2F%2Fimage.tmdb.org%2Ft%2Fp%2Fw500%2FzprZHNTaUsGOL63mDiCHriNOGwJ.jpg&w=1920&q=75)
![LOONA On Wave [LOONATHEWORLD : Midnight Festival] poster](/_next/image?url=https%3A%2F%2Fimage.tmdb.org%2Ft%2Fp%2Fw500%2FsN7K7AMZv05IkhB3HPAhjP4R8rL.jpg&w=1920&q=75)
![LOONA [#] Showcase poster](/_next/image?url=https%3A%2F%2Fimage.tmdb.org%2Ft%2Fp%2Fw500%2FrSZ1tINSxCh1E9P0GHjbQBRUxXl.jpg&w=1920&q=75)
![Loossemble 2024 Concert [Up_Link Station] in U.S poster](/_next/image?url=https%3A%2F%2Fimage.tmdb.org%2Ft%2Fp%2Fw500%2Fnve0T9R2SlcAVbpKCC6fvFo67eZ.jpg&w=1920&q=75)