Ellen Mitchell‏: Wish I was there.... must be electric in that stadium tonight.

Jordan Dent‏: I'm not even a massive boxing fan, but would love just to be in that atmosphere of the @principalitysta, external showing it’s one of the best stadiums in the world!

Michael Pearlman
BBC Sport Wales at the Principality Stadium

AJ out to Paid in Full by Eric B and Rakim. Was this the tune he wanted last time? We may never know. Pretty cool ring walk music though.

If you have forgotten, a problem with the PA system meant Joshua came out to cheers but no music last time he was here.

Anthony Joshua is now in the ring. A nation expects. Anthony Joshua has certainly never let anyone down. Twenty wins from 20 fights, all inside the distance.

Can Joseph Parker shock the boxing world and wreck those stats?

Joshua makes his way on to a platform, still nowhere near the ring, a bit of shadow boxing before realising he may need to get to the ring.

Thousands of lights are shown from fans trying to capture the moment on their phones and it is no surprise, this is spectacular.

Image source, Reuters

A single spotlight in a darkened stadium picks out Anthony Joshua.

The ringwalks have lasted longer than some of his fights, but it only builds up the atmosphere further. On-fire huge letters AJ are either side of the Brit as he slowly makes his way through the tunnel.

Get ready, this is going to be explosive.

Image source, Reuters

'Another one bites the dust' is the music playing as we get ready to see AJ.

These are the 20 men that Anthony Joshua has faced in his career, and the subsequent rounds they were knocked out or stopped in.

No-one has ever taken Joshua more than 11 rounds. Will we be adding the name of Joseph Parker to this list of those who have tried, but failed?

Round 1: Emanuele Leo, Hector Alfredo Avila, Matt Legg, Michael Sprott, Gary Cornish.

Round 2: Paul Butlin, Hrvoje Kisicek, Dorian Darch, Matt Skelton, Denis Bakhtov, Raphael Zumbano Love, Kevin Johnson, Charles Martin.

Round 3: Konstantin Airich, Jason Gavern, Eric Molina.

Round 7: Dillian Whyte, Dominic Breazeale.

Round 10: Carlos Takam.

Round 11: Wladimir Klitschko.

Image source, Getty Images

How good actually is Joseph Parker? We are going to find out in about 15 minutes' time. It is make-or-break time for the New Zealander. He certainly is not showing any signs of nerves, despite being the away fighter with 78,000 packed into the Principality Stadium, and the majority of them against him.

Joseph Parker has a Samoan heritage and represents New Zealand so an All-Blacks style 'Haka' is only fitting. Here he comes into the arena. Pyrotechnics galore, strobing flashing lights, light up the Principality Stadium.

Image source, Reuters

Former world cruiserweight champion Johnny Nelson: "Parker is fit. I would be surprised if AJ knocks him out clean but I think there will be a stoppage or the towel comes in. AJ needs to hurt him and establish who he is from the off."

Michael Pearlman
BBC Sport Wales at the Principality Stadium

How noisy is it in the Principality Stadium?

I've been here for every boxing show, Wales internationals both football and rugby, the FA Cup final, you name it....

And in terms of the noise levels, this tops the lot by a distance.

Sweet Caroline sung by 78,000 has to be heard to be believed.

Floyd: Joshua could lose this easily.

Redletterboy: Parker has looked very average in his last few nights, has never shown the levels that Joshua reached against Klitschko. Late Joshua KO for me.

'Let's get this party started' screams Michael Buffer.

Image source, Reuters

Mike Costello
BBC Sport boxing correspondent

It could evolve into one of Joshua's toughest tests.

In the end, I think Joshua will simply be too big. I think he is such a sponge in terms of absorbing information in his career, I think we will see an improved Joshua, and a winning one.

Image source, .

WBO world heavyweight champion Joseph Parker has been called the 'king of pies' but he tells Steve Bunce that he is OK with that tag, as you can see in the video below.

Anthony Joshua gave Parker that nickname in an interview, but it is not something the New Zealander is too bothered by.

"I love to have a pie," says Parker. "When I'm back in New Zealand as soon as I get off the plane I'm going to a bakery. They should make a Parker Pie."

Will Joshua be eating humble pie tonight?

Just a tiny glimpse of the atmosphere at the Principality Stadium for you here.

BBC Sport app users may need to click on the link to see the video.

Luke Reddy
BBC Sport boxing reporter at the Principality Stadium

Some serious red blazer game here from Michael Buffer.

Now the Voice of Boxing is orchestrating the crowd as Neil Diamond's classic 'Sweet Caroline' rings around the stadium. That's a five-minute warning right there.

Feeling hungry? This is a typical day of food for Anthony Joshua. That's a lot of protein there.

Image source, .