Well looks like Christmas is coming a little early to Mexico City with a gift from the one and only Britney Spears.  Spears put on a free concert in Mexico City on Sunday December 4th.  It was all part of Spears ‘Femme Fatale’ tour. She took to twitter to announce she was going to extend her say and offer a free concert at no cost.  She wanted to do it because she wanted to give back to her fans that have showed so much support and love for her.  Plus another milestone for spears over the weekend she celebrated her 30th birthday.