TS娛樂
In February 2011, TS Entertainment revealed that after Secret concluded their promotion for "Shy Boy", member Song Ji-eun will have a solo debut. Through Korean online music portal site, "Bugs!" coming soon page, it was revealed that Jieun will be releasing her solo single, "Going Crazy," on March 3, 2011 through various music portal sites. On February 27, TS Entertainment revealed the music video teaser for "Going Crazy" which features a girl setting up a car on fire in a middle of nowhere. The same day, TS Entertainment released the concept photo for the song and revealed that the girl from teaser video was the South Korean actress Min Hyo-rin. Through Naver, TS Entertainment released their statements on Jieun's single: