Kim Hyung-seo, known professionally as BIBI, is a South Korean singer, rapper, songwriter, and actress.

In 2018, she appeared on the SBS program The Fan and was the show's runner-up. 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), The Fiery Priest (2024) and Gangnam B-Side (2024).