Not a huge fan, but respect her talents and I thought the show was actually pretty damn good. I keep hearing people claim she lip synced. Nope. She had backing tracks, but she nailed it with a hot Mic all the way. She apparently rehearsed it all for months to do it live. It was very impressive.
I had no idea until I Google searched her afterwards, but she's a huge Zeppelin fan. She was in a Zeppelin cover band, and still covers them in concert all the time apparently.
The girl has some pipes.