"Sisters Who Make Waves"(be) among the summer's television hits in 2020 in China. The show involved 30 female celebrities over the age of 30 (compete) for a spot in a five-member band. Viewers watched them train, perform and live together. Five hundred (woman), picked at random, got to vote for their favourite. Within three days of its airing in June, over 300 million watched the first episode on Mango TV, a streaming app (own) by the state television net work of Hunan, a central province.