BOL4 (Bolbbalgan4) is a South Korean indie pop act that debuted as a duo in 2016 before transitioning into a solo project led by Ahn Ji-young. Renowned for soft vocals, catchy melodies, and heartfelt lyrics, BOL4 rose to fame with hits like Galaxy, Some, Travel, and Workaholic. Their music seamlessly blends indie, folk, and K-pop elements, setting them apart in the Korean music scene. Following Woo Ji-yoon’s departure in 2020, Ahn Ji-young carried on BOL4’s legacy as a solo artist while preserving its signature emotional depth.

Despite the lineup change, BOL4 remains a prominent force, consistently releasing new music and performing at concerts and festivals. Ahn Ji-young’s expressive storytelling and distinctive sound continue to captivate audiences, cementing BOL4 as one of Korea’s most cherished indie pop acts.