第九期是第三轮团战，由A组的四位歌手组成的“尊老爱幼”对战B组的四位歌手组成的“乐享乐队”，各演唱三首歌曲进行比赛。第九期节目与前两轮团战的节目形式相同。马嘉祺因特殊原因特地在北京通过视频设备连线交流进行节目录制。
The ninth episode is the third round of team battles. The "Respect for the Elderly and Love the Young" composed of four singers in Group A will compete against the "Happy Band" composed of four singers in Group B. Each will sing three songs for the competition. The ninth episode has the same format as the previous two rounds of team battles. Due to special reasons, Ma Jiaqi specially recorded the program in Beijing through video equipment connection communication.
