I had to watch it twice because it just looked/sounded wrong. Then I figured it out. I'm so used to when someone holds the frets (sorry if I'm using the wrong terms) at the end it will be a low note, or high if near the body. But she changed which strings she was playing at the same time so the notes went higher when I expected them to go lower based on which frets she was holding. I was confused until I really watched it carefully.
I would bet she is really good playing Spanish guitar music.
This is probably the easiest song she has covered on You Tube. Check out her cover of Billie Jean.
She is an absolutely amazing guitar player.