BIBI
BIBI (김형서) is a South Korean singer and actress known for bold music and The Fiery Priest 2. See her biography, age, songs and best dramas here.

Beyond the screen.
BIBI is a South Korean singer, songwriter and actress with a bold style that no one can copy. Her real name is Kim Hyung-seo. She became famous first through music, with songs full of honest emotion. Now she is also winning praise as an actress in dark crime dramas.
BIBI is about 169 cm (5 ft 7 in) tall.
Early life
BIBI was born Kim Hyung-seo on September 27, 1998, in Ulsan, South Korea. As a teenager, she uploaded her own songs to SoundCloud, where the famous rapper Tiger JK found her music. She joined his label, Feel Ghood Music, and debuted as a singer in 2019 with the single Binu.
Career and breakthrough
BIBI's music career rose fast with songs like Kazino and the album Lowlife Princess: Noir (2022). In 2024, her sweet song Bam Yang Gang became a number one hit in Korea and showed her soft side. As an actress, she appeared in the films Phantom (2023) and Hopeless (2023), which was invited to the Cannes Film Festival.
Popular roles
In The Worst of Evil (2023), BIBI plays Lee Hae-ryeon, a cool and dangerous woman inside a drug crime world, and her strong screen presence surprised many viewers. In The Fiery Priest 2 (2024), she plays Koo Ja-young, a tough young detective. The role showed her comic timing and action skills, and many fans say it proved BIBI is a real actress, not just a singer who acts.
Recent work and why fans love her
BIBI also starred in the crime series Gangnam B-Side (2024) and keeps releasing music that tops Korean charts. Fans love her because she is honest and fearless. BIBI writes about love, pain and freedom in her own way, and she brings that same brave energy to every acting role she chooses.
A career, chapter by chapter.
Selected drama roles
- The Worst of Evil — Lee Hae-ryeon
- The Fiery Priest — Koo Ja-young
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Stories to find them in.
Selected credits in the Oxfea collection.
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