Prince Harry and Meghan Markle's royal wedding: All the famous guests to expect

Royal wedding fever is well underway, as we're less than two months away from Prince Harry and Meghan Markle's nuptials!

The lovebirds are set to tie the knot on May 19, with approximately 600 guests invited to attend the service at St. George's Chapel in Windsor Castle, along with a lunchtime reception hosted by Queen Elizabeth II.

The ceremony is expected to be a more intimate affair than Harry's brother, Prince William's, 2011 nuptials to Kate Middleton. Considering both Harry and Meghan have a myriad of famous pals, we're hoping to see a few familiar faces.

Kensington Palace revealed on Thursday that the invitations were officially sent out, issued in the name of His Royal Highness The Prince of Wales. Approximately 200 guests have also been invited to the reception at Frogmore House, which will take place later in the evening and be hosted by Prince Charles. As we patiently await for what's sure to be the most regal event of the year, let's take a look at all the celebs who most likely scored an invite!

The Spice Girls

When Mel B. was a guest on The Real last month, she dropped a huge hint that the Spice Girls may not only be attending the royal wedding, but potentially performing! She first confirmed that all five of the girls had been an invited with a "proper" invitation, and then threw her cards in the air when asked if they would also be taking the stage. "I'm going to be fired," she joked.

However, according to an interview Mel C. gave to The Sun earlier this month, she had yet to receive an invitation in the mail. "I’ve met Prince Charles lots of times. I’m going to ask him where my invite is because I haven’t got mine yet, obviously Mel B said she has hers," she said at the time. "I think Mel was just kind of having a bit of a joke. There are no plans to go to the wedding at the moment."

Well, guess we'll find out soon, Sporty!

David Beckham

If Victoria Beckham is invited along with the other Spice Girls, we can almost guarantee that David will be there, too! Plus, he and Harry have developed a close friendship over the years. David and Victoria were both guests at William and Kate's 2011 wedding, and Harry and David have been spotted out together socially quite a few times since. In 2012, the former soccer star told Esquire that he has a “very normal relationship” with William and Harry, and that the young royals were “very easy to get along with."

Additionally, Victoria was awarded an OBE (Officer of the Most Excellent Order of the British Empire) by Prince William for her contributions in fashion and her charity work last April.

Elton John

Last month, Elton John rescheduled the concerts that were planned the same weekend as Harry and Meghan's nuptials, which caused many fans to speculate that the iconic singer may be making an appearance at the royal wedding. ET asked Elton at this year's GRAMMYs if he would be attending and/or performing at the highly anticipated ceremony. "I have no idea. No one's been invited yet," Elton said at the time, as his husband, David Furnish, added, "Crossing our fingers!"

In an earlier interview with ITV's Lorraine, Elton -- who was friends with Harry's late mother, Princess Diana -- opened up about the 33-year-old prince's engagement. "I spent some time with him at Google camp in Sicily last summer, and I could tell that he was totally in love," he gushed. "And I thought, 'Good for you.' When people get married, you want it to last. You want them to be happy. I'm happy for him. I hope they have a wonderful day."

Sarah Ferguson

There's been a lot of question over whether "Fergie" will score an invite. A source told ET in February, however, that Meghan and Harry are planning to include the Duchess of York in wedding activities, despite her rocky relationship with the royal family after her divorce from Prince Andrew in 1996.

Serena Williams

Though Meghan wasn't present at Serena Williams' fairy tale New Orleans wedding to Alexis Ohanian, the two are still good friends. In September 2016, Meghan shared a cute photo of the two at New York Fashion Week, when she came out to support Serena's show for HSN. "My eyes are closed but my heart is so open!" she captioned the snap. "So proud of your new collection @serenawilliams. Happy I could be there to support you xx #NYFW."

Meghan and Serena have been friends since at least January 2015, when Meghan tweeted a photo of them hugging after Serena's win at the US Open. In her now-deleted blog, The Tig, Meghan once gushed about being friends with the tennis legend.

"She quickly became a confidante I would text when I was traveling, the friend I would rally around for her tennis matches, and the down to earth chick I was able to grab lunch with just a couple weeks ago in Toronto," she wrote.

Priyanka Chopra

Meghan is also good friends with actress Priyanka Chopra. Meghan once Instagrammed the two attending a Hamilton performance together in New York City, and Priyanka previously posted a picture of her and Meghan having a girls' night out with filmmaker Mubina Rattonsey in Los Angeles.

When ET spoke to Priyanka in December 2016, she said she would definitely attend the royal wedding. "Listen, I love Buckingham Palace, so if the Queen invites me, I'm there," she joked.

Earlier this year, the Quantico star played coy when asked about her pal's bridal party in an interview with Harper's Bazaar Arabia, "If you see me there, you'll know," she teased.

Although she couldn't give the outlet too many details about Markle's upcoming nuptials, she did give her friend credit for how she's handled all the recent attention. "I don't think anybody else would be able to do it the way she will. She’s just right for it," Priyanka exclaimed. "She's an icon, truly, that girls can look up to, that women can look up to. She's normal, she's sweet, she's nice, she thinks about the world, wants to change it and this was even before any of this happened."

"So, I do think Meghan being a part of the royal family is a big step in the direction of so many things; of women, of feminism, of diversity, of race, of the monarchy versus everyone else," she added. "It's a beautiful step in the right direction."

Patrick J. Adams and Troian Bellisario

It's no secret that Meghan is good friends with her Suits love interest, Patrick J. Adams. The two have always been supportive of one another, so we would imagine that Patrick and his wife, Pretty Little Liars star Troian Bellisario, were one of the first couples to receive an invite.

"Playing Meghan’s television partner for the better part of a decade uniquely qualifies me to say this: Your Royal Highness, you are a lucky man and I know your long life together will be joyful, productive and hilarious," Patrick tweeted when news first broke that Meghan and Harry were engaged. "Meghan, so happy for you, friend. Much love."

ET also spoke with Patrick at the 2017 ATX Television Festival in Austin, Texas, where he had nothing but good things to say about the royal romance. "Meghan and I have been such good friends for years now and to see her so happy is great. She's super excited," Patrick said. "I'm super happy for her."

The cast of Suits

Starring in seven seasons of the USA Network legal drama as the beloved Rachel Zane, Meghan obviously developed a close bond with her co-stars. In addition to Patrick, we're expecting stars like Sarah Rafferty and Abigail Spencer to watch their pal say "I do."

"The cast has been contacted in regards to invites from Kensington Palace," a source reportedly told HELLO!. "The cast and key executives from the hit U.S. show are on the invite list for the royal wedding."

The Obamas

Harry has had a notably close friendship with former president Barack Obama and former first lady Michelle Obama through the years. Barack and Michelle have been big supporters of Harry's Invictus Games, even engaging in some friendly competition with one another.

Even after the Obamas left office, the three have maintained their ties. The 33-year-old royal and the former first lady once surprised students at Hyde Park Academy together, a high school in Chicago, ahead of the Obama Foundation Summit. Clearly, Michelle and Harry were more than happy to reunite!

Justin Trudeau

Harry isn't the only one with ties to the political world. Meghan is friendly with Canadian prime minister Justin Trudeau. In September 2016, before she wiped away all her social media accounts, the bride-to-be even Instagrammed a photo of the two in Ottawa for the One Young World summit.

At the time, Meghan also shared photos of herself with Justin's wife, Sophie, as well as her close friend, stylist Jessica Mulroney (who helped her pick out her wedding dress designer!), enjoying some photo booth fun.

Rihanna

Here's hoping we see a glimpse of RiRi at the ceremony! In December 2016, she and Harry appeared to make fast friends when they took HIV tests together on World AIDS Day. Harry also joined Rihanna at the Barbados stop of his Caribbean tour to celebrate the island's 50th Anniversary of Independence with a concert and fireworks show, along with a ceremonial monument unveiling.

Cara Delevingne & Margot Robbie

Margot Robbie once revealed that her Suicide Squad co-star, Cara Delevingne, was good friends with Harry during a LOVE magazine interview. The three were also photographed partying together over the holidays in 2015 at a bash thrown by model Suki Waterhouse. "He's friends with Cara. He's the most normal guy ever," Margot said of Harry. "I didn't realize it was him [at the party]."