In today's New York Times, my profile of Ke$ha.

Not that you can actually use the name Ke$ha in a NYT piece on Ke$ha. You have say Kesha.

Other expressions you can't use in a NYT piece on Ke$ha (or indeed in a piece on anything) are "badass", "cock rock", "cock pop", and "balls over dance beats". (That last one, I didn't even try to get in there).