Billlie 빌리

Billlie is a South Korean girl group formed by Mystic Story, known for a genre-defying sound that blends alternative pop, rock, and experimental production with a concept centered on duality and surreal imagery. The group's music often explores contrasting emotional states, paired with distinctive visual storytelling and choreography that sets them apart from typical girl-group presentations.

Since debuting, Billlie has built a dedicated global fanbase through releases that showcase versatility across moody, atmospheric tracks and bright, energetic performances. The members are recognized both as a unit and for individual activities in variety and digital content, contributing to the group's growing presence in the K-pop scene both domestically and internationally.