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Meghan Markle and Duchess Kate twin for Commonwealth Day

Now To Love logo Now To Love 12/3/2018 Chloe Lal and Candice Mehta-Culjak

Meghan Markle stepped out for the Commonwealth Day church service at Westminster Abbey on Monday -- one of royal family's most formal events of the year.

The former actress arrived on the arm of her husband-to-be Prince Harry, looking typically put-together in a cream tailored by Amanda Wakeley and a matching beret by Stephen Jones. She accented the subdued ensemble with dark navy suede pumps and a mini navy leather bag.

And it wasn't hard to see where she pulled her inspiration for the polished look!

The Duchess of Cambridge -- who was also in attendance, alongside her husband Prince William -- opted for top-to-toe navy in a dress and coat by Beulah London, a Lock & Co hat and the very same pair of suede court shoes.

Many avid royal watchers thought Kate and Meghan wore identical navy pumps, but after some sleuthing it turns out the LA native donned a pair of Manolo Blahnik, while the pregnant mum rocked her trusty old favourites - the Celeste heels by Jimmy Choo.

Kate, who is expecting her third little prince or princess in just a matter of weeks, let her future sister-in-law shine during the proceedings as she took to the altar to sing the national anthem.

Duchess Kate's heel compared to Meghan Markle's pump

a group of people walking on a beach: They're very similar! © Provided by Bauer Media Pty Ltd They're very similar!

They're very similar!

Watch Liam Payne perform for the British Royal Family

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The royal-to-be was also spotted nodding along to musical performances, including an upbeat number from former One Direction band member Liam Payne.

Her future husband was less enthusiastic by Liam's rendition of John Mayer's Waiting On the World to Change.

Harry was spotted raising his eyebrows, which left his actress partner in a fit of giggles.

Watch the adorable moment in the video player above!

a group of people standing on a sidewalk: Meghan, Harry, Kate and William stepped out in all their glory for the Commonwealth Day church service at Westminster Abbey on Monday. © Provided by Bauer Media Pty Ltd Meghan, Harry, Kate and William stepped out in all their glory for the Commonwealth Day church service at Westminster Abbey on Monday.

Meghan, Harry, Kate and William stepped out in all their glory for the Commonwealth Day church service at Westminster Abbey on Monday.

Prince Harry wearing a suit and tie: Meghan arrived to the formal event on the arm of her husband-to-be, Prince Harry. © Provided by Bauer Media Pty Ltd Meghan arrived to the formal event on the arm of her husband-to-be, Prince Harry.

Meghan arrived to the formal event on the arm of her husband-to-be, Prince Harry.

a woman talking on a cell phone: Re-splendid in burgundy! © Provided by Bauer Media Pty Ltd Re-splendid in burgundy!

Re-splendid in burgundy!

a group of people standing next to a person: The former actress perfectly coordinated her outfit with her future sister-in-law. © Provided by Bauer Media Pty Ltd The former actress perfectly coordinated her outfit with her future sister-in-law.

The former actress perfectly coordinated her outfit with her future sister-in-law.

a group of people in uniform: Matchy-matchy! © Provided by Bauer Media Pty Ltd Matchy-matchy!

Matchy-matchy!

Meghan, Harry, Kate and William -- a.k.a the awesome foursome -- joined the Queen, Prince Charles and the Duchess of Cornwall for the church service. Prince Andrew, Princess Anne and the Countess of Wessex also made up the royal party.

Following the event, the young royals spent some time with those who gathered from far and wide to catch a glimpse of their outing.

The 36-year-old is stepping into the role of the people's princess with ease.

Talking to David Swindells, she told him, "The service was beautiful, especially the choir and the music."

Charmed by their conversation, the teacher admitted, "She was very personable. I think she'll be a great addition."

a woman standing in front of a building: Following the church service, the awesome foursome chatted happily with those who had travelled to catch a glimpse of their royal outing. © Provided by Bauer Media Pty Ltd Following the church service, the awesome foursome chatted happily with those who had travelled to catch a glimpse of their royal outing.

Following the church service, the awesome foursome chatted happily with those who had travelled to catch a glimpse of their royal outing.

a group of people posing for the camera: Harry was besotted by how cute the young guests were. © Provided by Bauer Media Pty Ltd Harry was besotted by how cute the young guests were.

Harry was besotted by how cute the young guests were.

a group of people standing in front of a crowd: She's got the royal handshake down pat! © Provided by Bauer Media Pty Ltd She's got the royal handshake down pat!

She's got the royal handshake down pat!

a man wearing a suit and tie standing next to a woman: Meghan's attendance speaks volumes. © Provided by Bauer Media Pty Ltd Meghan's attendance speaks volumes.

Meghan's attendance speaks volumes.

Harry's future wife also eagerly chatted to pupils from the local school.

She was overheard telling them, "Hi, I'm Meghan," before gushing, "So sweet!"

One attendee, Ms Hartley, shared a snippet of their moment together.

"She was saying what a lovely service it had been and her first service at Westminster Abbey. We congratulated her on her engagement."

"She was delighted and said she was 'very, very excited' about her wedding."

Ms Hartley added, "She stayed chatting with us for quite a while - what a lovely, lovely lady."

Before Meghan's big day - take a look at the tiaras she could wear for her royal nuptials!

Queen Elizabeth II wearing a hat: Her Majesty looks most pleased with her floral arrangement. © Provided by Bauer Media Pty Ltd Her Majesty looks most pleased with her floral arrangement.

Her Majesty looks most pleased with her floral arrangement.

a group of people standing next to a person in a suit and tie: This is Meghan's first time at Westminster Abbey. © Provided by Bauer Media Pty Ltd This is Meghan's first time at Westminster Abbey.

This is Meghan's first time at Westminster Abbey.

a couple of people standing next to a person in a suit and tie © Provided by Bauer Media Pty Ltd

"She's lovely!"

Watch video

The British Royal Family then attended a private reception for those involved in the event.

Meghan's attendance at the annual celebration is unprecedented given that she hasn't yet joined the royal family -- officially, that is. Her wedding to Prince Harry will take play on May 19 in St. George's Chapel at Windsor Castle.

As Kensington Palace recently announced, following the ceremony, the newlyweds will undertake a tour of the town as their first trip as man and wife to greet well-wishers from all over the world who have come to see them.

It will no doubt remind fans of similar scenes that played out during Prince William and Duchess Catherine's 2011 wedding.

WATCH: Relive the magic from Prince William and Duchess Catherine's wedding day.

Watch video

There's also speculation the 36-year-old might be walked down the aisle by none other than Prince William.

According to The Sun, Prince Harry's big brother may step up for the important moment as Meghan's two closest male relatives may not be at the royal wedding.

Apparently her half-brother Thomas Markle Jr didn't receive an invite.

A royal insider said, "I think it is because he just can't seem to keep his mouth shut. If he would quit talking to the media, Meghan would probably be more into the idea of inviting him."

Meghan Markle posing for the camera: Meghan's half brother Thomas Markle Jr is unlikely to be present at the wedding. © Provided by Bauer Media Pty Ltd Meghan's half brother Thomas Markle Jr is unlikely to be present at the wedding.

Meghan's half brother Thomas Markle Jr is unlikely to be present at the wedding.

Meanwhile, another report claims that the actress' dad Thomas Markle will not be giving her away.

"She's also worried about how he would handle it as he's become even more of a recluse," a source voiced to The Star.

"Not to mention the fact that there has been some bad blood between Harry and Thomas after Harry made comments about her finally getting the family she never had."

Meghan's half-sister Samantha has previously shared that her dad will definitely step in and walk his daughter down the aisle... only time will tell.

Not long to go now

a group of people standing on a sidewalk © Provided by Bauer Media Pty Ltd

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