People are all pointing out the same thing with Melania Trump as she and the president meet King Charles

Much of the internet is pointing out the same thing about Melania Trump as she and her husband, Donald, met King Charles III at Windsor Castle.

Back in February, in his first visit to the White House with Trump as president, British Prime Minister Sir Keir Starmer handed him an invitation from King Charles III for a 'truly historic' and 'unprecedented' second state visit.

The POTUS said it was a 'great, great honour', as he arrived in the UK alongside the First Lady, on Tuesday (September 16).

After staying overnight at Winfield House following their landing, on Wednesday (September 17), President Trump and First Lady Melania were greeted off their helicopter by the Prince and Princess of Wales, before meeting with the King and Queen.

And people were already quick to point out Trump's apparent breach of royal protocol, but another thing that caught people's attention was Melania's attire, particularly her hat.

Some social media users couldn't keep their eyes off Melania Trump's huge hat (BBC News)

"Melania’s got the 'don’t come f****** near me' hat on," one X user penned, while another asked: "Covering more than half her face. Why??"

Meanwhile, others picked up on an apparent color choice in both Melania and Trump's outfits, as someone else penned: "Noticed that Donald Trump is wearing a purple tie and Melania Trump is wearing a purple hat. Purple is the colour of royalty."

The agenda for the Trumps' today includes a flypast of UK and US military jets, which Starmer is said to be attending, as well as a banquet at Windsor Castle.

And while the Royal Family welcomes the US President to Britain, one man who is not rolling the red carpet out is Sadiq Khan.

The pair have shared a few barbs at each other over the years, with the first instance occurring during Trump's first term, where he branded Khan 'a stone-cold loser' when the Mayor of London criticised his pledge to ban Muslims from entering the US.

And as Trump landed on UK soil, Khan accused the POTUS of having 'fanned the flames of the far-right' and of bringing a 'toxic form of politics' to the streets of both nations.

Trump has met up with the British Royal Family (Aaron Chown - WPA Pool/Getty Images)

In his article for The Guardian, the 54-year-old wrote: "President Donald Trump and his coterie have perhaps done the most to fan the flames of divisive, far-right politics around the world in recent years.

"When he came to the UK on his first state visit, I highlighted how the president had deliberately used xenophobia, racism and 'otherness' as an electoral tactic, introducing a travel ban on a number of Muslim-majority countries and praising white nationalists in Charlottesville, Virginia.

"Six years later, the tactics we see from today’s White House seem no different. Scapegoating minorities, illegally deporting US citizens, deploying the military to the streets of diverse cities. These actions aren’t just inconsistent with western values – they’re straight out of the autocrat’s playbook."

He added that while he understood the importance of 'wanting to maintain a good relationship with the leader of the most powerful country in the world', it was equally important to 'ensure our special relationship includes being open and honest with each other'.