http://www.youtube.com/watch?v=B-o8egEWiZE&feature=player_embedded

Wow, what a show, and what a fantastic finale for Britain's Got Talent, as a rumoured 16 million viewers tuned in! Essex and London street dancers Diversity (above) came up against global Scottish phenomenon Susan Boyle and left me reeling - with delight - as they were declared the oh-so deserving winners.

Even the 10-strong troupe's astounding choreographer Ashley Banjo (left) couldn't quite believe his ears. When it was revealed it was between Diversity and Susan Boyle, he immediately assumed they would be runners-up.

"When you said our name I thought I was dreaming. Everyone who has voted - you have changed our lives, he gasped at hosts Ant and Dec.

No doubt the nation - if not the entire world - was also shocked, not to mention all the bookies who thought Boyle would walk it.

So good for Susan (below) for being so charming in defeat as she took second place and agreed Diversity should win.

How great, too, to see super saxy saxophonist Julian Smith being voted into third place - the show's second biggest brilliant surprise.

But there's no doubt justice was done - Diversity were sheer dynamite. They win a cool £100,000 and a lofty gig to perform at this year's Royal Variety Performance in front of the Queen.

Diversity stunned us from the start, when they blew everyone's socks off at their audition in show three, which you can catch here.

And you can see their standout semi-final performance - along with their interviews - here.

I loved Julian Smith (right) in the earlier shows, but I was rooting for Diversity all the way in the final - apparently along with most of the people on the hip social networking site Twitter.

The boys' celebrity fans included Lily Allen, Phillip Schofield, Angela Griffin, Robert Llewellyn, Richard Bacon, Andi Peters, George Best actor Tom Payne and even Twitter queen Demi Moore - who originally put Susan Boyle on the worldwide map.

Pity the bookies weren't keeping an eye on that, eh?

"Think I might be a little bit in love with the choreographer," Tweeted Waterloo Road star Angela. Aren't we all, Ange, aren't we all?

And all credit to Simon Cowell (left) for proving that Britain really does have talent, though an even bigger shocker is that Cowell Has Heart!

After years of playing Mr Nasty he went all soft on us over all sorts of unlikely acts - and at one point, according to fellow judge Amanda Holden, even shed a tear. "I don't know what's happening to me," he wailed this week. We don't either, Simon, but we like it!

Britain's Got Talent seemed pure cheese when it started three years ago - and though many of this year's earlier acts still curdled my stomach (Nick Hell, Peter Coghlan, Fabia Cerra, yuck) virtually all the acts in final were just champion. And it was a genuine nailbiter when the votes came in because absolutely no one could predict the outcome.

And what a boost for variety. After years of TV companies desperately trying to dream up successful Saturday-night entertainment shows, Britain's Got Talent has single-handedly filled the gap everyone's been missing since the giddy Good Old Days - with the thrills and spills of live TV thrown in, too.

The likes of hilarious Greek lord of the prance Stavros Flatley (above) were priceless. Standing ovations and ouzos all round!

On the controversial child star front, Hollie Steel, who broke down sobbing in the semis, and Welsh wonder Shaheen Jafargholi delivered fabulous songs.

But the judges made one big mistake with the finalists - cute young semi-finalist Callum Francis (above) should have been in there, not grandfather-granddaughter duo 2 Grand. I'm sure they would have gone down a storm at a wedding, or another such aah-factor family do, but they weren't finalist material.

Despite all the furore about the kids who were reduced to tears, which was indeed horrible - poor Natalie Okri (right) in particular, Callum was a young pro through and through.

After his Oliver! and Mowgli turns he would have laid on another riproaring performance.

My heart also went out to tremendous young talents Natalie and Kieran Gaffney when they got knocked out. Little Natalie being left to walk off stage and into the audience pit alone in tears was a shocking sight. It would have been better if she could have just run to her mum in the wings.

And I still can't believe devastated little drummer boy Kieran (below) didn't even make the semis while the gross-out acts did.

Let's just hope the youngsters' confidence hasn't been shattered and we see all five kids back a little bigger, and even better, next year...