ViVi
Birthday: 12/9/1996
Gender: Female
Place Of Birth: Tuen Mun District, New Territories, Hong Kong

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.