I watched and when I heard her say she had been praticing her singing and all for six months in L.A. I was amazed.
Also she made light of her foot injury saying "I wish it had happened when I was doing some complex dance move but I walked out on stage and the lightpost has a drop off and I put foot there and it went :click click:"
She stayed on stage because she didnt know what to do... what a trooper!