The9 was a Chinese girl group formed through the IQIYI survival show Youth With You 2. The group consisted of Liu Yuxin, Yu Shuxin, Xu Jiaqi, Yu Yan, Xie Keyin, An Qi, Zhao Xiaotang, Kong Xueer and Lu Keran.
The9 was formed on May 30, 2020, and officially debuted on August 10, 2020. It was managed by Idol Youth Entertainment of iQIYI. The group was supposed to disband on November 30, 2021, but they disbanded on December 5, 2021.