Kim Hyung-seo (김형서), born September 27, 1998, better known by the stage name Bibi (비비; stylised in all caps), is a South Korean singer-songwriter. During 2017, she signed with Feel Ghood Music after Yoon Mi-rae discovered her self-produced songs on SoundCloud. She made her debut on May 15, 2019 with the digital single "Binu".

This is a personal, fan-made project and is non-commercial.