Kim Hyung-seo (Korean: 김형서, born September 27, 1998),[1] known professionally as Bibi (Korean: 비비; stylised in all caps), is a South Korean singer and actress. In 2018, she appeared on The Fan and became the runner-up of the show. In 2022, she released her first studio album Lowlife Princess: Noir. As an actress, Bibi is well-known for her lead roles in the film Hopeless (2023) and television series such as The Worst of Evil (2023).