Has Ant off Ant and Dec got new teeth? BGT host’s gnashers look WELL different

Still with his thumbs up even though he looks like he's been in a pub brawl

Now perfectly veneered

Aww, cute! But obviously Em didn't think so...

Just like her auntie (Julia Roberts), Emma's now not shy of flaunting her Hollywood whites

How has Becks naturally got this amazing set of gnashers? Jealous!

Looking beaut with her new smile. Although we personally think she was beaut before (minus the bangs and weird make-up)

This is proff that Jess hasn't actually aged at all

Is it just us or do we spy a whiter shade of er, white?

Leaning towards the front (and leaning towards veneers)

Still keeping a fairly neutral shape, we reckon these are a surefire improvement

The singer's pearly whites weren't always so pearly white

But now she's looking a bit of all white

Just how young and natural does Katie look here?

As difficult as it is not to be distracted by this photo, Katie's glowing gnashers are so bright our eyes hurt

CZJ looks fresh as a Darling Bud Of May in her youth

Then her teeth transformed into a smile that won Michael Douglas over

Once upon a time, Gord wore a magician's cast-offs and also had slightly yellow teeth

But then he got rid of the fuschia shirt, went to the dentist and lived happily ever after

Uh-oh, Ro. Maybe you should've kept your mouth shut...

Life has been one hell of a dentistry rollercoaster, but at least Ronan's come out the other end

He might've been a Pop Idol back in the day, but he's not always been a tooth idol

Anyone else somewhat reminded of Ross from Friends in the glow-in-the-dark teeth episode?

Gnashers....everybody needs good gnashers....

Nothing short of a perfect smile for our Kyles

And Kylie's not the only Minogue to have had a bit a polishing by the looks of it. Take a look at Dannii's child star days which came complete with off-white gnashers

Now Dan looks like she's stepped out of a Colgate advert

Little Hermione once had a few wonky pegs

But now they have miraculously disappeared. Something to do with a spell perhaps?

A few gaps to speak of

Now there's not a gap to be seen

Super white, but 50 Cent obviously wanted to MIND THE GAP (sorry)

Now the rapper's got that Hollywood smile down to a tee

A few wonky front teeth obviously put Mr Clooney on edge

Oh George. We always thought you were perfect anyway

We can't see anything wrong with it, but Rylan was not a fan of his smile clearly

Words fail us regarding these pegs. Words also failed Rylan too as he could barely get his words out on BBBOTS

Pip was once not Dancing On Ice-whites

But now he is! And straight along the edges too

Amazing hair volume but not such amazing teeth unfortunately

Now it appears the actor has definitely had at least a bit of whitening

Just like Chezza, Cher's not always had teeth to drill (sorry) for

The X Factor singer has now got a brand new set of pearly whites which she treated herself to

Slash then, and now. Still would though, right? No?

Tulisa and her teeth look great on The X Factor in 2012...

But has the former judge had her gnashers done?

Yes, yes she has. Once you've stopped gawping at her boobs that is

Cheryl Cole? With veneers or some such?

Zac Efron is living proof that good oral hygeine is, err, a good thing

Even if it means he's lost that cute (so hot right now) gap.Random question: Is it true that people with gaps between their front teeth are better singers? Zac? Anyone? No?

Victoria Beckham smiling! As if that's not exciting enough...

Look at this pic of her pre-Hollywood smile!When Victoria Beckham smiles, the world smiles. Kind of. But do you love a VB grin as much as heatworld does? And who's got the best teeth in Hollywood? Let us know below...