Show business is full of vacant teens -- pretty and hollow and shaped by cynical grown-ups. Miley Cyrus and Justin Bieber, however, are not among them.
So it was surprising to see the sketch in tonight's "Saturday Night Live." It was another round of "The Miley Cyrus" show, repeating the false assumption that Cyrus is a no-talent ditz. And guesting was a clueless Bieber (played by the real Miley Cyrus, this week's host).