Around 2,000 guests were in attendance at King Charles' Coronation on Saturday, and while there was plenty for royal fans to look at throughout the service at Westminster Abbey, there was one woman in particular who stole the hearts of many.
Pippa Middleton, the sister of the Princess of Wales, arrived with her brother, James Middleton, and their parents, Carole and Michael Middleton, and turned heads in a stunning yellow dress with a matching fascinator.
And royal watchers couldn't help but take to social media and gush over Princess Kate's sister, with many saying she had "stolen the show" with her gorgeous gown.
One person wrote on Twitter: "Pippa Middleton stealing the show again in lemon. Breathtaking", while another gushed: "Pippa looks lovely in yellow."
And a third said: "Wow Pippa looks stunning."
But Pippa wasn't the only member of the Middleton family that wowed royal watchers either, as people were equally stunned by her mum, Carole, who wore a sapphire-coloured dress and headpiece.
Someone said: "Carole Middleton really [shows] where Catherine's exquisite charm comes from."
As someone else added: "Carole and her husband did an excellent job raising the future Queen."
And even Princess Kate herself wore an outfit that left people speechless, as she paid a touching tribute to her late mother-in-law, Princess Diana, as well as her late grandmother-in-law, Queen Elizabeth II, in her jewellery choices.
Kate wore a pair of pearl and diamond earrings that had once belonged to Diana and had been gifted to her by her the then-Prince Charles just before their wedding in 1981, and paired them with the George IV Festoon Necklace, which was made in 1950 at the request of King George VI for his daughter, the now-late Queen.
The rest of Kate's outfit included a formal robe alongside an Alexander McQueen dress in ivory silk crepe with silver bullion and threadwork embroidery featuring rose, thistle, daffodil and shamrock motifs.
She topped off the breathtaking gown with a Jess Collett x Alexander McQueen Headpiece with silver bullion, crystal and silver threadwork three-dimensional leaf embroidery.
The headpiece Kate wore even twinned with her daughter, Princess Charlotte, who donned a smaller version of the headpiece as well as a matching Alexander McQueen dress.
King Charles was crowned alongside his wife, Queen Camilla, in a service at Westminster Abbey on Saturday morning with more than 2,000 guests in attendance.
Alongside Kate and her daughter Charlotte, the Prince of Wales was also in attendance, as were the couple's two other children, Prince George and Prince Louis.
King Charles' youngest son, Prince Harry, was also in attendance, although his wife, Meghan Markle, and their children Archie and Lilibet, remained at home in California.
Following the ceremony, members of the Royal Family travelled along a 1.3-mile-long procession route from Westminster Abbey back to Buckingham Palace, before stepping out onto the balcony for a scaled-down RAF flypast.
