Almost 12 months ago who would win Britain’s Got Talent, and the £100,000 top prize, looked like it was a sealed deal.

Frumpy Scottish singer Susan Boyle had aced the auditions, been given odds of 8/13 to win by William Hill, and was the front cover star of the Radio Times that week, adopting the victor’s posture in front of all the other finalists.

But then street dance troupe Diversity came along to upset the apple cart, scooping 24.9% of the final viewers’ vote and leaving Subo trailing in second place.

“We thought we had no chance,” says the 11-strong group’s choreo-grapher Ashley Banjo.

“We just went out there aiming to give the best performance we possibly could. To come away as winners was amazing. I had my runners-up speech all ready and then when they said our name I just buckled. My knees gave way!”

Now the dancers have embarked on their first ever full headline UK tour, having previously performed a ten-minute slot in the 30-date Britain’s Got Talent nationwide jaunt and a show-stopping appearance at the Royal Variety Performance.

Bringing A Toy Story To Life sees the dancers become Diversitoys – action figures who break out of their toy box to go on an adventure.

Along the way they meet fellow Britain’s Got Talent finalist Aidan Davis, as a body-popping Bionic Boy, and a host of pretty Barbie-style dolls played by girl dance troupe Sugar Free.

And there is even space for their ever-popular Britain’s Got Talent vote-winning slow-mo Chariots Of Fire pastiche.

“I wanted to have a theme that was very universal,” says Ashley.

“I was thinking through loads of things, and the toy theme came to me. The show will have lots of different elements and will be unpredictable.”

The group is made up of three sets of brothers: Ashley and Jordan Banjo, Ian, Jamie and Matthew McNaughton and Sam and Mitchell Craske, as well as their close friends Terry Smith, Ike Ezekwugo, Warren Russell and scene-stealing crazy-haired moppet Perri Luc Kiely.

With their ages ranging from 13 to 26, the group formed about four years ago, in memory of a close friend who died of cancer.

“Her death inspired us, and really gave us the push to get us together,” says Ashley. “Shortly after we choreographed our first routine, and then from there Britain’s Got Talent seemed like the logical next step.”

The lads all live by the motto Dream, Believe, Achieve – and the results of following that creed will be obvious on the Brighton Centre stage.

As well as a 90-minute performance by the dance troupe, the Brighton Centre show will also feature sets by Aggro Santos and Mini Viva.

*Doors 6.30pm, £18.90, call 0844 8471515