J was taken to hospital on Saturday after tearing tendons in her left foot and was initially advised not to perform. But you cannot stop the force of music and she performed anyway.
"I fell off the stage and mashed up my foot," she told the crowd. "I ruptured all tendons in it. I was told to stay at home. But I said, 'Are you crazy? I'm not letting down my fans.' I did ask for a crystal sock but this is all they had."
After her performance she took to Twitter, thanking fans for their support, claiming the show was the "Most amazing moment in my life" (unlikely but a nice thing to say) then used the spectacular phrase "Bruck up foot and all".