Diversity’s Perri Kiely has revealed he was ‘terrified’ ahead of the group’s performance at the Britain’s Got Talent final.

The dance troupe, led by Ashley Banjo, teamed up with Little Mix, who sang their latest single Salute, on the ITV1 talent show, which they won in 2009. Despite performing for huge audiences, the 18-year-old admitted returning to the Britain’s Got Talent still gives him the jitters.

“Whenever you turn up, it’s scary. It’s horrible. I have loads of nerves to cope with, and as soon as you come off the stage, you’ve got the judges looking at you – but it’s always fun,” he said.

“I’m always nervous before I go on stage, but once I’m there with the rest of the boys, the nerves disappear. For some reason, my nerves make me feel really tired so once I’ve warmed up, I fall asleep.”

Ashley admitted the pressure of getting their performance right also weighs heavily on him.

He said: “Making a mistake on stage is bad, but it’d be awful if you made a mistake if you’re going back to Britain’s Got Talent with all the other acts on stage. This is the biggest competition we’ve won so we have to come back, do our best and be amazing. It always puts added pressure on us, coming back to the place where we won. It’s like playing on home ground.”

Both dancers agree that operatic boyband Collabro deserved to win this year’s series.

“It was the most open fina,l but their act was so solid. They’re one of the only acts I can really see blowing up and doing really well,” Ashley said.

Diversity have created a series of optical illusions dance routines to celebrate the launch of Cadbury Dairy Milk Marvellous Mix-Ups. Fans can check out the videos on here, with the chance to win the ultimate home entertainment system when they upload their best mixed-up picture.

“This seemed like a fun thing to do and we got to mix up our body parts. It’s all moves people can do at home, whether you’re a dancer or not,” Ashley explained.