Is it really that difficult to believe? Mick Jagger would know. He's been an absolute pro at selling the Stones, and more importantly, himself, for fifty years now. Of all the Stones, selling has always been his number one priority. So it really comes as no surprise to me that he's sharing the stage with Gaga.

They need an artist to rope in the younger generation. The Black Keys certainly don't have the audience that Gaga does. So as much as Lady Gaga fans would like to convince themselves that she's worthy of performing alongside rock legends because of her supposed talent, it's really all about the money. Just as everything is with her. Which is why, as a massive Stones fan, this doesn't really bother me.