He's certainly not short of fans - a fact that was well and truly proved as Justin Bieber performed in Mexico.The 18-year-old singer performed for a crowd of 200,000 people during a free concert last night, belting out some of his biggest hits to the delight of his "Beliebers”.Wearing a grey sweatshirt, white jeans and fluorescent trainers, Bieber looked delighted as he bounded around the stage. Daily Mail