Before we all get outraged, let's just bear in mind that Catherine may well have a point. That depends on what criteria she's using to judge mediocrity by. I think it's quite possible that we may regard these criteria quite differently.

I can't think of any folk singer who wouldn't get absolutely slated by the panel of the X-Factor, but that doesn't mean to say they're mediocre, simply that you shouldn't judge one art form by the standards of another.

Let's see what Catherine has to say.