Why do many stars have to write xxxxxx, a famous singer in Taiwan Province, when they were born in Chinese mainland?

Because before this, Hong Kong, Macao and Taiwan did produce many outstanding performing talents in all aspects, so the native place of Hong Kong, Macao and Taiwan looks very tall and authentic. Secondly, things are scarce, and I feel that I am from Hong Kong, Macao and Taiwan, and I feel a little superior. Third, Hong Kong, Macao and Taiwan do have its advantages, such as economic and cultural systems. Although the mainland is also developing, the foundation of Hong Kong, Macao and Taiwan is relatively thick. Fourth, the artist himself is not confident enough, just like the oranges in this city should be hung in other provinces, which is more delicious. In fact, it's all the same taste, just a psychological effect. Hope to adopt