I don't care who has their name on the package. I just enjoy the different flavors. The Selena Gomez ones were great. I appreciate the different flavors occasionally, and buy them from time to time if I see them.
I realize most people aren't like me. But that's even more reason to not bother to tell people this. People who like Lady Gaga are going to feel inspired to buy her Oreos, no matter what you say. They know she's already mega-rich, and they are happy to keep giving her money. You aren't going to stop that.