"Disturbance" is a Korean song released as a digital single by South Korean singer BoA, released on January 28, 2013. The song was written and composed by the singer herself as special release for her

Who's Back? is the eighth Japanese-language studio album by South Korean singer BoA. It was released on September 3, 2014, by Avex Trax and compiles all of her singles released since her previous stud