Celebrities arrive to celebrate King Charles III's Coronation, from Prince Harry, to Katy Perry and Joanna Lumley

King Charles III's Coronation is underway, and it has been the royal event many have been waiting in anticipation for - us included. 

The ceremony, which will see St Edward’s Crown placed on the 74-year-old British monarch's head, has been meticulously planned for months, and now the day has finally arrived. 

The momentous event will take place at London's Westminster Abbey on 6 May, with the official crowning ceremony due to take place at midday. 

The event has amassed thousands of royal fans, some have pitched up along The Mall and Buckingham Palace for hours to witness the ceremony, which is a big moment in royal history.

There has been growing speculation over who will or will not be attending the Coronation, such as Prince Harry and Sarah Ferguson. 

Prince Harry has confirmed he will be present and has been spotted in the UK ahead of the Coronation, despite fears he could pull out last minute, while Sarah reportedly did not receive an invite - which she believes is due to her divorce from Prince Andrew. 

There have also been hints about which celebrity guests have received an invite over the last few weeks, and now the wait is over. 

As guests file into Westminster Abbey, eagle eyes are on who has been cherry-picked to attend. 

Prince Harry made his way into Westminster Abbey with cousins Princess Beatrice, her husband Edoardo Mapelli Mozzi, as well as Princess Eugenie and partner Jack Brooksbank. 

Princess Anne arrived in her uniform ready to ride on horseback in the procession later on today. 

The Princess Royal's daughter, Zara and husband Mike Tindall, have also made their way to the ceremony, as well as the Duke and Duchess of Edinburgh. 

US President Joe Biden is absent from the ceremony - as he has reportedly declined the invitation - but First Lady, Jill Biden, has been pictured making her way into the venue wearing a royal blue jacket and skirt two-piece, with a bow headband to match. 

French President Emmanuel Macron is present, and other prominent leaders across the globe are expected to join to watch the Coronation. 

British Prime Minister Rishi Sunak, as well as former PM's, including Boris Johnson, wife Carrie Johnson, Tony and Cherie Blair, as well as David and Samantha Cameron.

Music composer Andrew Lloyd-Webber has also made his way into the London venue ahead of the official ceremony.

Actress Dame Joanna Lumley is also already seated and ready to enjoy the milestone event, as well as Stephen Fry. 

Presenters Ant McPartlin and Declan Donnelly - also known as Ant & Dec - are also guests at the Coronation ceremony.

Music icon Lionel Richie, who is set to perform at the King's Coronation party on Sunday 7 May, has arrived at Westminster Abbey, as well as I Kissed A Girl hitmaker Katy Perry alongside British Vogue Editor Edward Enninful.

Prince Andrew has also been spotted making his way to Westminster Abbey, although he is no longer in a working role so will not be standing on the balcony of Buckingham Palace later on in the Coronation events planned for the day. 

The Coronation guest list - who did you spot?

Prince Louis

Prince Harry 

Pippa Middleton

King Abdullah II and Queen Rania of Jordan

Dame Emma Thompson

Boris and Carrie Johnson

Zara and Mike Tindall

King Felipe and Queen Letizia of Spain

Princess Charlene and Prince Albert of Monaco

Princess Beatrice and Edoardo Mapelli Mozzi

Princes Eugenie and Jack Brooksbank

Lionel Richie

Ant & Dec

Katy Perry