The Brown Eyed Girls have been releasing tons of teaser photos for their upcoming 4th album, and they've just added another batch to the list! After unveiling Narsha and Ga-In's posters yesterday (who embodied "FREEDOM" and "RESISTANCE" respectively), the girls followed up with the remaining images for Miryo and Jea. Jea's 'concept' is simply "MUSIC", while Miryo was tagged with "E-X-P-RESSION". Fans have been furiously debating over whether these 'concept words' are meant to express the girls' individual personalities or if they hinted at the group's overall theme. We'll find out for sure when the girls release their album on September 23rd, so stay tuned to allkpop for updates! Source + Photos: Seoul NTN via Naver