On March 23rd new singer Chae Hyo Jung released her first single, 소나비, and she did so with Monni guitarist Kong Tae Woo accompanying her on the song “소나비(소중한 나의 비밀)”. Having been trained by Park Jung Eun for three years, Chae Hyo Jung first showed off her vocals to the public end of last year when singing “오랜만에” for movie Mr. Idol (Mr.아이돌), where she also appeared as ‘girl playing guitar’.