This is truly recidulous. And my only regret is that my comment is rather late and probably won't be read, but anyhow here goes:

Well, Christina and Lady GaGa both have MONUMENTALLY powerful voices. But they are both completely diffenrent artists.

Let's explore these comaprisons shall we?

Christina wants to come back with a bang right? So why not get her to do something that big in the music business atm? Dance/electropop is big atm. Because of Lady GaGa.

WAHEY. There it is. That's why. It MUST BE.

But wait a minute! What about Christina's 'Dirrty'? That's pretty club-centric isn't it? Hmmm...

So what if it appears Christina's copying GaGa? To me, she's just returning to her 'Dirrty' roots.