Our host Dec is here to show us how it's done in his incredible show opener tonight! Watch as he delivers an amazing rendition of 'There's No Business Like Show Business' - complete with jazz hands of course!
We hope the acts are taking note - now THAT is star quality!
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There’s No Business Like Show Business! Dec opens the show in style... | Semi-Finals | BGT 2018 ─ Britain's Got Talent
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