Carrie Underwood: I Told You So

All of her vowels are appropriately very country. There is a lot of country twang to this song, which should probably be expected from a Randy Travis song.
There is also a nasally quality to her voice, though I think this is just done stylistically. I love the control she uses for all the moving notes. They are not just arbitrarily moving around, but she is doing everything on purpose.
I would like to hear her transition into head when she sings "I told you so" just because it sounds a little strained, or at least just not to push so much.
All in all, this is a great song and Carrie does a wonderful job executing it.