BOL4 is a South Korean musical duo formed in 2016, consisting of members Ahn Ji-young and Woo Ji-yoon. They are known for their catchy melodies and heartfelt lyrics, often blending genres like pop and indie. The duo gained popularity with their hit songs, which showcase their unique sound and emotional storytelling. The name "BOL4" is derived from the Korean phrase "Bolbbalgan4," which translates to "red-cheeked" in English, symbolizing youth and innocence. Their music often resonates with young audiences, and they have received several awards for their contributions to the South Korean music scene.