Cosmos Girl, a Korean women's group, appeared as a guest on SBS radio program "Cui Huajing's Power Time", in which Cheng Xiao talked about the distress of losing weight.

In the program of the day, the host Cui Huajing saw the member Cheng Xiao and asked, "You are already very thin, but I heard that you are still worried about gaining weight." To this, Cheng Xiao replied: "I don't think I am thin. As long as I eat too much, I will get fat, so I have been managing my body. " Cheng Xiao also said that when she first started out, she basically only ate salads every day. Recently, he will eat reasonably and keep exercising.