I think that all pop stars can be great. They make good music, they make people have fun.But how do you imagine them to be politicians? This can be good, because they have a point of view that may be good, they can try to help and they sometimes do it.
But on the other hand, they generally don’t know anything about politics, and the can make a total mess. In my opinion they shouldn’t become political because I think they wouldn’t make as much good things as bad things.