Britain's Got Talent 2013 final: Protestor eggs Simon Cowell live! (VIDEO)

A protestor (of sorts) invaded the Britain's Got Talent 2013 final tonight to egg Simon Cowell.

It was certainly no Calvin Harris and his pineapple.

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.

Security took a while to respond to the intruder, but quickly ushered her off stage as Richard and Adam stayed focus and continued on singing.

Afterwards, Simon quipped: "I thought she was throwing sandwiches!"

And Amanda Holden said: "The only person who has egg on her face is that stupid cow."

Alesha agreed, saying that the distraction was a "shame" for the boys as they competed to win the £250,000 prize and spot on the Royal Variety Show.

Hosts Ant and Dec congratulated the pair on continuing to perform despite the on stage invasion.

But Dec was quick to joke: "Well that was all a bit egg-y... too soon? Too soon!"

More to follow.

The live final continues right now on ITV.

Browse pictures of the incident below...

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