SECRET's main vocalist, Ji Eun, recently concluded her group's promotions for "Shy Boy", and has moved on to work on her solo debut. Fans are quite stunned at the radical transformation the idol has made, as she went from a cutesy bubble-pop concept�to a more hardcore street-punk style. Fans who saw her album jacket photos for "Going Crazy"�commented, "Shocking blue hair", "With just a few day difference, one can look completely different", and "An interesting concept for a new album." It's also been announced that Ji Eun's song will be a ballad, which has dramatically increased expectations for both the song and its performance. If you missed the release of her teaser video, check it out here! Source + Photo: Star News via Daum