Britney Spears is celebrating the 10th anniversary of the annulment of her 55-hour Las Vegas wedding. The pop star, who recently returned to Sin City to kickstart a two-year concert residency at the Planet Hollywood resort, wed childhood crush Jason Alexander on 3 January, 2004. The booze-fuelled union was cancelled two days later when Lisa M. Brown, a Clark County Family Court judge, signed off on the annulment papers and announced the brief marriage was over.