The One Direction singer met the Kate and the Prince of Wales as they attended their first Royal Variety Performance together and afterwards told reporters, “I said congratulations on the bump,” before adding that really, Kate “didn’t look bumpy.”
Smooth, Harry.
Alongside Harry in the line-up to greet the royals was his bandmate Liam Payne who admitted, “It's the most nervous I think I've ever been in my life,” while Louis Tomlinson panicked, saying: “I didn't say ma'am! I said - Hi. How are you? I'm Louis.”
The Steal My Girl stars performed tonight alongside Ed Sheeran, Ellie Goulding and Bette Middler.
During the show, Jack Whitehall joked about his mum’s disappointed that he hadn’t dated his old schoolmate, Kate.
“She'll be doing it tonight, she'll be watching the Royal Variety show and I know what she'll be saying - she'll be like: 'Oh look, there he is,’” Jack told the audience.
“'The black sheep of the family embarrassing himself in front of the one that got away.’”
Kate stunned the waiting crowds outside the Palladium in London in a black Diane von Furstenberg dress.
Prince George's first year in super-cute pictures

22 July 2013
Prince George is born. Hooray!

23 July 2013
Prince George says hi to the world for the first time!

23 July 2013
Just look at that cute little snoz!

19 August 2013
Kate's dad Michael takes this super-cute photo of the whole family. Lupo the dog 'n' all.

23 October 2013
George gets christened at Chapel Royal in St. James's Palace.

23 October 2013
Nice Dress...

23 October 2013
Seriously- what shoes would you even wear with a gown like that?

7 April 2014
Prince George, Kate and Wills arrive in Wellington for a three week tour of New Zealand and Australia.

7 April 2014
Jet lagged? Please... this guy eats jet lag for breakfast.

9 April 2014
Baby George meets the locals at a Plunket Parents' playgroup.

9 April 2014
"Is that Coconut Oil I detect, Mother? Smells great."

9 April 2014
Not sure about that one, no?

9 April 2014
Oh dear...

9 April 2014
Just look at those chubby cheeks!!!

9 April 2014
Great moves, little buddy.

16 April 2014
The gang leave New Zealand and head for Oz.

16 April 2014
The squishiest legs in town? We reckon they might just be.

16 April 2014
Prince George, Ma and Pa arrive at Sydney Airport from New Zealand.

16 April 2014
Nice outfit change.

20 April 2014
The family visit the Nightlife display at Taronga Zoo.

20 April 2014
Snack time? Not so much...

20 April 2014
George soon forgets he's hungry when this little guy turns up.

20 April 2014
George meets a Bilby.

20 April 2014
This photo is filled to the brim with cuteness.

20 April 2014
We can't decide who we want to hug more- George or the bilby... Both at the same time could work.

20 April 2014
George gets to officially name the Prince George Bilby Exhibit.

25 April 2014
Time to head back to London. Booooooooooo.

25 April 2014
George: "Yeah, thanks for having us. Or whatever..."

25 April 2014
Someone just caught site of his on-flight meal.

25 April 2014
It's faces like this that make us love you, Prince George.

15 June 2014
Price George attends his first polo match in Cirencester.

15 June 2014
And takes his first public steps!

15 June 2014
Look- there's no stopping him!

15 June 2014
Oh... spoke too soon.

15 June 2014
Don't be sad, little guy.

15 June 2014
Mum will make everything OK again.

15 June 2014
"Mum. Mum. MUM. MUUUUUUUUMMMMMMM!"

9 July 2014
Prince George gets his own Vanity Fair cover. Yeah, he has to share it with some nobodies, but still...

22 July 2014
Happy first birthday Prince George! So what better way to celebrate the little guy's birthday than by releasing three new official photos. Thanks Royal family!

22 July 2014
Great dungarees. They are soooooo this season.

22 July 2014
TOO FRICKIN' CUTE.