Well, I have to say that I was quite impressed with tonight's performances. When I first heard that it was Rod Stewart night, I was picturing a trainwreck of epic proportions, but I was very pleasantly surprised. I think that they all did quite well.

Chris, Paris, Elliott and Katharine did so very, very well. If it comes down to the four of them, I would have a hard time voting, although I love Elliott's absolute ease with every song he sings.

Taylor started out meh, but then kicked some butt. Kellie did the opposite. She started out very, very well, but then lost it. Ace's rendition was, as Simon said, charming. I think it would be difficult to decide who to vote off this week.