THE BRITAIN'S Got Talent: The Champions' judges dance the Greek Zorba during Stavros Flatley's final performance, which comes after the father and son duo announced that they are splitting up.
A first look at the popular pair's act, which will air tomorrow night, shows Simon Cowell and co. jump to their feet as they are encouraged to join in with the routine.
In the clip, 51-year-old Demi Demetriou bounces onto the stage in character to the usual Riverdance music, only for 23-year-old Lagi to cut it off and announce: "Let's do this Greek style."
He tells his dad: "Teach them to dance!"
Demi happily obliges, demanding that everybody in the studio gets up on their feet as the famous Greek Zorba starts playing.
Showing the audience how to do the dance, the pair put their arms around each other and sway to the beat, with Simon, Alesha Dixon, Amanda Holden, and David Walliams following.
Joined on staged by traditional Greek dancers, the music starts to pick up pace - with the judges and audience struggling to keep up.
The full performance will be shown during the pre-recorded live final on ITV tomorrow, where Lagi will also announce that he has left the group.
Yesterday, The Sun Online revealed that Demi and Lagi are parting ways professionally - 10 years after finding fame on the talent show.
Lagi intends to concentrate on his barber shop in Cyprus, home of the recently opened Stavros Flatley Museum which is located inside the toilets.
Demi, famous for his tattoo of the map of Cyprus on his belly, will continue to perform with his nephew Samson, 17.
In an exclusive interview with The Sun, Lagi said: "We’ve done this for 10 years for a joke.
"We’ve done so many amazing things but what is there left to do? We’ve done the Royal Variety, we’ve played in China, Monaco - everywhere.
"So when we got to The Champions, I thought this was the right time to leave. But Simon Cowell told me not to quit forever. So I will return for some shows."
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Demi claims the pair have made more than £2million from their exploits on the show and have performed all over the world.
They became a cult hit in the 2009 series, which featured Susan Boyle and eventual winners Diversity, courtesy of their hilarious take on Michael Flatley’s Lord of the Dance routine.
The former restaurant owner, who now spends most of his time in Cyprus where he runs a water sports business, describes their success as "a joke which has got out of hand".
But he believes Samson will be a hit with fans due to his impressive physique.
He explained: "He has a six-pack - I’ve given up getting one of those."
Britain’s Got Talent: The Champions THE FINAL airs at 8:30pm on Saturday 5th October on ITV
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