I don't think Rihanna's last minute call was a "surprise." I think it had something with conflicting times. I think Eminem was supposed to rehearse first.
I reaaaally hope Gaga performs. Rihanna being a plus. Gaga deserves to win all of the nominations she's getting (excluding the Video Phone nominations - that video is just horrid). Personally, I think Ke$ha should win Best New Artist but that award is obviously going to Justin Bieber.
That's why I still didn't get my hopes up. Everyone is rumored to appear at the VMAs.
But Eminem is already performing LTWYL so... And Rihanna is already in LA, so why not?
Wait, the VMAs start in one hour? I thought it was tomorrow?
Exactly, I think the chances are good for the performance. MTV always loves to have a big opening performance and this would be the BIGGEST performance they could have.