As the saying goes, birds of the same feather flock together, and that’s what happens when celebrities are friends with the royals. The celebrities, after all, are royalty in their own field. Know the celebrities who developed friendship with royalty like Prince William, Prince Harry, Kate Middleton and Meghan Markle.

Elton John

Long before the era of social media, Elton John and Princess Diana’s friendship was one of the most coveted. John sang “Candle In The Wind” during Princess Diana’s funeral.

Rod Stewart

The British rock singer is friends with Prince Charles. The high-profile friendship goes a long way back. The Prince of Wales appointed Rod Stewart as ambassador to his Prince’s Trust and was present during the opening of the foundation’s new building. Stewart also performed at Prince Charles’ 60th birthday.

Tom Hanks

“Forrest Gump” actor Tom Hanks has been one of Princess Diana’s personal friends. Former royal butler Paul Burrell divulged in an interview that he had known Hanks for a long time because of Princess Diana. Hanks was also present in Diana’s funeral.

Reese Witherspoon

Reese Witherspoon met Kate in 2011 at a fundraiser for Tusk Trust, a charity close to Prince William’s heart. Witherspoon happily described her meeting with the duchess: “she did not disappoint.” The mutual admiration of the two women founded their friendship.

Ellie Goulding

“Lights” singer Ellie Goulding has established friendship with several royals. Goulding is friends with both Prince William and Prince Harry and was romantically linked to the latter, but it was never confirmed. The royal couple William and Kate asked Goulding to perform for their first dance in their wedding.

Recently, Princess Eugenie posted a photo of her with the singer on her Instagram account. The two are working for a fundraiser called Streets of London.

The Beckhams

David Beckham and the rest of his family are friends with Prince William. They are seen together several times during tennis tournaments. Beckham described their friendship as very normal and the royals love their sport.

Rihanna

Fenty founder Rihanna crossed paths with Prince Harry in Barbados during the islands’ celebration of its 50th year of independence. When the two first met, they quickly connected like two old friends. Upon their first meeting, Prince Harry convinced the singer to take an HIV test with him as part of his Caribbean tour. From then on, the two hit it off as friends.

Chris Martin

Free-spirited Prince Harry is friends with almost all A-listers, including Coldplay vocalist Chris Martin. In 2016, Martin performed with his band in Prince Harry’s charity Sentebale, a foundation for mental health. After the performance, Prince Harry joined the band in the stage like old pals do.

Nicole Kidman

Award-winning actress Nicole Kidman is friends with Jordan royalty Queen Raina. The Jordanian queen hosted the baptism of Wendi and Rupert Murdoch's two daughters, Grace and Chloe, and organized a tour to Jordan’s most beautiful places for A-lister friends, including Kidman and Hugh Jackman.

Kidman is also friends with Princess Diana and was spotted during the princess’ funeral, along with her ex-husband, Tom Cruise.

Ashton Kutcher And Mila Kunis

One of Hollywood’s power couple Ashton Kutcher and Mila Kunis are good friends with Princess Eugenie. The three met through Princess Eugenie’s ex-boyfriend, Dave Clark.

Serena Williams

Tennis legend Serena Williams and Meghan Markle have been friends long before Meghan met Prince Harry. The friendship status, however, has been solidified when Williams reportedly paid for The Mark Hotel’s $75,000-per-night penthouse, which was used to house Meghan’s lavished baby shower a few days ago.

Amal Clooney

George and Amal Clooney were spotted in the Duke and Duchess of Sussex's wedding in 2018. Amal Clooney has been helping Meghan adjust to London life after the duchess' marriage to Prince Harry.