Eggs thrown at Simon Cowell Britain's Got Talent Final 2013

Britain's Got Talent' got a surprise guest during its live final, when a young woman interrupted the performance of singers Richard and Adam, and started throwing eggs at the judges.Halfway through the performance by Welsh brothers Richard and Adam, a woman appeared on stage in front of them, before pelting Simon Cowell with eggs.The brunette female appeared to already be on the stage, dressed as part of the orchestra or backing singers accompanying Richard and Adam.Alesha also spoke out about the egging during her review and she said: ‘I’m so sorry about what happened I’m so annoyed about that but you carried on.’ Jack Carroll was the next act to perform on stage and he used the opportunity to make a joke about the situation. He began: ‘Can I just say, I was going to run on and throw some eggs, so thanks for ruining that.