Talk about unexpected!
The Old Men Grooving dad dance crew left the Judges open-mouthed in amazement when they busted out some SERIOUSLY good moves on Saturday night.
We sent Stavros behind to scenes to catch up with the dancing dads to find out what their kids REALLY think, and why they think age is nothing but a number…
See more from Britain’s Got Talent at http://itv.com/talent
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