Can Britney Dance in her Femme Fatale Tour?

Many people say she can't dance anymore, but people expect her to do the same she used to do when she was 18; she's turning 30 in this year. She is still dancing, and more than that, she's singing over the playback during all the show. She even sings totally live in some parts of it. In this video you can take a look at the new Britney, and she that she's still on fire!!!