29/08/2017 Newsround

Hi, I'm Ricky, and you're live with CBBC this Tuesday morning.

Coming up on Newsround in the next few minutes:

We're on the red carpet with the stars of this year's Strictly.

And the policeman showing off his dance moves in London.

Flooding in the US city of Houston in America

is expected to get worse today, after more rain was forecast.

Thousands of people have been rescued from their homes

after Tropical Storm Harvey battered the city, and many more

Later today, President Trump will visit Houston to see the damage.

Newsround has spoken to Emilio and Thomas,

It started flooding the neighbourhood.

And me and my dad and another person took a boat ride on the flood.

My school is out for a week and a half because of weather like this.

We're going to be having to take in some of our friends that

I know friends that the water's up to their driveway,

and one of our friends is about to get flooding

in their house pretty soon, so it's kind of a scary experience,

Showbiz now, and Strictly fans, this one's for you.

All the celebs have been revealed, and it's time for them

to take to the dance floor for the first time.

Luckily not in the ballroom but on the red carpet.

Ayshah went to see them strut their stuff.

It's that time of year when the glitterball is dusted off.

We're here on the Strictly red carpet.

And it's safe to say that this year's group of Strictly stars can't

It's going to be huge, because people who've

watched me on Top Class or The Dog Ate My Homework

are used to seeing me in a very different way.

We are actually going to do the show.

It's started already, and we have been getting

ready since about ten o'clock this morning.

We are all in our sparkly outfits, even the boys.

I have sequin envy because Jonnie Peacock has got multicoloured

This is not something that I would never normally do.

But I think that's really good for me to challenge myself.

But despite the excitement, everyone seems to be a little

Do you know what I'm really nervouc about is doing a dance

I'm quite nervous about the possibility of forgetting

I don't want to just go flat on my face.

Running upstairs in heels, and the fact that the camera is on you...

So if you see me doing that, something's gone wrong.

That's it for the red carpet, but it won't be long till we find

out who the celebs' partners are, and then those Twinkletoes

This month marks ten years since hashtags have been

But have you ever wondered were they came from and why we use them?

They're used not just online but in everyday life.

Did you know the hashtag symbol first popped up in the '70s

and was used by computer experts as a way to make notes in coding.

And by the '90s, the symbol was used by the Internet relay chat.

That's an old messaging app that used hashtags

2007 was the birth of the hashtag as we know it.

That was the very first time hashtags were used on Twitter

And this became the normal way that people tweeted.

Other social networks like Instagram, Facebook and even

The word hashtag is now even in the Oxford English Dictionary.

Hashtags are used in everything from elections...

and even massive TV shows use it to get people talking.

Now people from all over the world connect using

Hashtag Newsround #historyofthehashtag!

Finally to the star of this weekend's Notting Hill

It's PC Daniel Graham and his body popping skills.

Yep, he's a real policeman, and this video of him dancing

at the festival has gone viral, with hundreds of thousands

And get this - it turns out PC Graham was also a contestant on last

Newsround's back with Jenny at 4:20 this afternoon.

My favourite shows are Horrible Histories...

and I really like Wolfblood, too,