Simon Cowell walked off stage mid act tonight after being invited on stage along with fellow presenter David Williams to help out with a ventriloquist act.
The final straw came when the ventriloquist Jimmy Tamley ‘Put words into Simons mouth’ quite literally, trying to get the BGT boss to preform the Can Can.

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Despite David Williams whole heartily taking part when encouraged to do the same, Simon walked off stage pulling the ventriloquist mouth piece he was wearing off in the process.
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Eventually Simon returned at the end of the act but by that time the act had run its course, if a bit premature!

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