I don't think "Overrated" has leaked either. Don't quote me on that, though. I agree with Duca, "Masquerade" is easily the best track so far.
I am saving myself to get the full tracks. I was download happy and got "Masquerade" and "Erase & Rewind" yesterday, but I'm going to conceal myself. I'm only going to get one every two weeks until the album's release. This way I won't be bored of the album by its US release.