WATCH: Katy Perry, Lionel Richie, Emma Thompson arrive for King Charles' coronation
As the coronation for King Charles III began to take place on May 6 at Westminster Abbey in London, a slew of celebrities, world leaders and dignitaries were spotted arriving.
Performers Katy Perry and Lionel Richie, who are performing in Sunday's coronation concert, were in attendance, as well as actress Emma Thompson.
Also in attendance are first lady Dr. Jill Biden, who arrived with her granddaughter, Finnegan Biden, to represent the United States, as well as Canadian Prime Minister Justin Trudeau and Ukrainian first lady Olena Zelenska.
See their arrivals and more below.
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Katy Perry
Katy Perry was among the familiar faces who arrived at the ceremony in style wearing a head-turning light purple fascinator with matching dress and gloves. The chic look which included a knee-length midi skirt and short sleeve fitted waist blazer also was accessorized with a lilac flower, pearl necklace and a white handbag.
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Katy Perry departs the Coronation of King Charles III and Queen Camilla, May 06, 2023 in London.
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Katy Perry and Edward Enninful arrive at Westminster Abbey ahead of the Coronation of King Charles III and Queen Camilla on May 6, 2023 in London.
The singer is set to perform at the coronation concert on Sunday, May 7, alongside Lionel Richie, who also appeared at the historical event on Saturday.
Lionel Richie
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US pop star Lionel Richie arrives at Westminster Abbey in central London, May 6, 2023, ahead of the coronations of Britain's King Charles III and Britain's Camilla, Queen Consort.
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Lionel Richie arrives at Westminster Abbey ahead of the Coronation of King Charles III and Queen Camilla, May 06, 2023 in London.
First Lady Jill Biden and her granddaughter
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Maisy Biden arrives at the Coronation of King Charles III and Queen Camilla, May 06, 2023 in London.
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First lady Jill Biden and her granddaughter Finnegan Biden arrive at Westminster Abbey ahead of the Coronation of King Charles III and Queen Camilla, May 6, 2023 in London.
Jeff Spicer/Getty Images
First Lady Jill Biden attends the Coronation of King Charles III and Queen Camilla on May 06, 2023 in London.
Queen Rania of Jordan and Queen Letizia of Spain
Queen Rania of Jordan and Queen Letizia of Spain also made their appearances donning stunning outfits to celebrate the long-lasting tradition.
Victoria Jones/POOL/AFP via Getty Images
King Felipe VI and Queen Letizia of Spain, and King Willem-Alexander and Queen Maxima of the Netherlands arrive at Westminster Abbey in central London, May 6, 2023, ahead of the coronations of Britain's King Charles III and Britain's Camilla, Queen Consort.
Canadian Prime Minister Justin Trudeau
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Canadian Prime Minister Justin Trudeau and his wife Sophie arrive at Westminster Abbey in central London, May 6, 2023, ahead of the coronations of Britain's King Charles III and Britain's Camilla, Queen Consort.
The celebration of the coronation is expected to last the whole weekend, highlighted by the coronation service at the Abbey on Saturday.
ABC News' Meredith Longo and Moe Zoyari contributed to this report.