Is Christina Aguilera Too Arrogant on ‘The Voice’?

I just started watching 'The Voice' this week, and the first thing I saw was an exchange between Christina Aguilera and Blake Shelton. I only needed to hear a few sentences and I was already thinking, 'Who does Christina think she is?'. I know that no one can question Christina's abilities as a vocalist, but it seemed to me that no one was more impressed with her ability than she was.

To be fair, I have to admit it was the first episode I saw, so maybe I caught a bad moment, or maybe I'm coming away with the wrong opinion of her based on one awkward exchange. Some people I've mentioned it to this week, though, tend to agree with my first impression. So I figured I'd go to you, the 'Voice' fans, to find out what you think.