She won.
You could tell all the stress and expectations (judges basically told her she would win weeks ago) were at the limit.
Cowell said it was the best and most talented show he's done. The ratings were the highest ever
Good singer and a nice kid (her parents broke her in to live performing at a coffee house a few blocks away so I know people who knew her for awhile now)
Video of winning moment (the MC was terrible)
https://www.facebook.com/nbcagt/#_=_