Katy Perry was considered one of the celebrity guests invited to affix the British royal family during King Charles III and Queen Camilla’s coronation weekend, together with Lionel Richie, First Lady Jill Biden and Emma Thompson.

The “American Idol” judge made headlines along with her looks while overseas, wearing two outfits by Vivienne Westwood. Her fashion decisions caught the eye of her fans on social media for resembling the late Princess Diana’s style. 

For the coronation service on Saturday, held at Westminster Abbey, Perry wore a custom-made lilac short-sleeve jacket and matching tailored skirt from the British brand.

Her look, which was accomplished with a dramatic lilac hat and a three-row pearl choker, was in comparison with Princess Diana’s lavender skirt suit designed by Gianni Versace. Diana wore the two-piece set for her anti-landmine speech in Washington, D.C., in 1997.

On Sunday, Perry took the stage at Windsor Castle performing her hit singles “Roar” and “Firework” through the coronation concert.

The singer wore an 18th-century-inspired gold metallic dress by Vivienne Westwood with a sculpted bodice, plunging neckline and an oversize skirt. She accessorized with golden cherub earrings.

Perry’s gilded dress looked like a modernized version of Diana’s gold satin dress designed by Murray Arbeid. The late mother of Prince Harry and Prince William wore the dress for the premiere of “2010: The 12 months We Make Contact” in 1985.

For each events, Perry collaborated along with her longtime stylist Tatiana Waterford to create her looks. “Thanks to your entire @viviennewestwood team who worked so hard to make our vision come to life,” Waterford wrote on her Instagram on Saturday.

Perry was also seen wearing a houndstooth outfit from Priscavera’s fall 2023 ready-to-wear collection in London. The ensemble was just like the Alistair Blair jacket Diana wore while visiting Munich in 1987.

The “Firework” singer was invited to perform on the coronation concert due to her relationship with the British royal family. In 2018, the singer performed at a charity event hosted by King Charles and was later appointed as an envoy to assist within the British Asian Trust’s fight against child trafficking, with the support of Britain’s latest king.

Charles has previously stated that the fight against child trafficking and poverty, in addition to environmental conservation, are a few of his passions.

Princess Diana had a presence throughout the coronation weekend. Catherine, Princess of Wales, also referred to as Kate Middleton, honored her late mother-in-law through the coronation service on Saturday. She wore a pair of diamond and pearl earrings from Diana’s jewelry box.

King Charles III became King on the death of his mother Queen Elizabeth II, the second-longest reigning monarch in history, on Sept. 8, 2022. Charles and Princess Diana were married from 1981 to 1996. One 12 months after their divorce, Diana died in a automobile crash in Paris. In 2005, Charles married Queen Camilla in a civil ceremony on the Guildhall, Windsor.