After teasing us over the past couple of days, SECRET's vocalist, Song Ji Eun, has finally released her digital single, "Going Crazy", on March 3rd. After concluding promotions with SECRET just last weekend, there is to be no respite for Ji Eun, who will dive directly into solo promotions with music that she's never done before. Composer Kang Ji Won and producer Kim Ki Bum joined forces to produce the R&B/hip-hop sound, combining Ji Eun's sorrow vocals and newbie rapper Bang Yong Guk's strong rap. It has a distinct piano rhythm that permeates the song with an imposing sound. Check out the music video below, which also stars actress Min Hyo Rin. Do purchase the single online to show your support!