On May 19, 2011, while still in the midst of their Fiction and Fact promotions, Cube Entertainment announced that Beast will be releasing their second Japanese single on June 15, 2011 with a Japanese version of their debut song “Bad Girl”.
Pada 19 Mei 2011, saat promosi Fiction and Fact, Cube Entertainment mengumumkan bahwa Beast akan merilis singel Jepang kedua pada 15 Juni 2011 dengan versi Jepang dari singel debut mereka berjudul “Bad Girl”.