Over the last few weeks Simon Cowell has been filming Britain's Got Talent audition but today he had a near miss.
The music mogul was nearly hit with a knife in Birmingham when a act was on stage performing and it went slightly wrong.
The first knife that was thrown missed Simon but the second came very very close to him.
Fellow judge David Walliams said:
"How much would I have to pay you to throw the knife a little bit nearer?"
Other judge Amanda Holden shouted out:
"You nearly killed Simon!"