Hey Girl is a group of Taiwanese singers. Channel held an audition for the show Wo Ai Hei Se Hui (?????), a variety show that aims to create new female entertainers in Taiwan. At the end of 2005, Channel picked nine members to represent the other girls. These nine members were Gui Gui, Xiao Jie, Mei Mei, Apple, Xiao Xun, Ya Tou, Xiao Man, Tong Tong, and Da Ya. Together, they are affectionately known as the Jiu Niu Niu (Chinese: ; pinyin: Jiu Niu Niu) for short.