I find it a little annoying to see that people don't think a person can have a good voice and sing really well because of her appearance. I would not be so cynical just because of the way someone looks.
I didn't find this woman particularly surprising, she sings beautifully but her voice does not have that special quality like some others who have amazed audiences in these shows, such as Paul Potts (far superior than this performance I'd say) or Leona Lewis (but of course, she's beautiful, so it's not news).
What I mean is, while she has a great voice, she sang it similarly to the way many other great singers might, and the voice wasn't out of this world. Maybe she could have chosen a better song.
She was on the evening news here, just because omg this rather odd looking lady can sing really well - how impossible
. Paul Pott is far more amazing to me because he not only has a great voice, it also has a special timbre that others do not. That is what I find breath-taking, not the fact that someone who doesn't have classic good looks can sing well.