Queen Elizabeth II's Platinum Jubilee Celebration

The Cambridge family attend the Platinum Party at the Palace on June 4.

The Prince of Wales and Duchess of Cornwall attend the Platinum Party at Buckingham Palace on June 4.

The Duke and Prince George of Cambridge attend the Platinum Party at Buckingham Palace on June 4.

The Duchess and Princess Charlotte of Cambridge attend the Platinum Party at Buckingham Palace on June 4.

Princess Beatrice, Edoardo Mapelli Mozzi and Princess Eugenie and Jack Brooksbank attend the Platinum Party at the Palace on June 4.

Pippa Middleton attends the Platinum Party at Buckingham Palace on June 4.

The crowd watching a film of Queen Elizabeth II having tea with Paddington Bear on a big screen during the Platinum Party at Buckingham Palace on June 4

Adam Lambert and the band Queen perform with the Royal Marine drummers at the Platinum Party at Buckingham Palace on June 4.

Rod Stewart performs onstage during the Platinum Party at Buckingham Palace on June 4.

Alicia Keys performs during the Platinum Party at Buckingham Palace on June 4.

Diana Ross performs during the Platinum Party at Buckingham Palace on June 4.

Andrew Lloyd Webber and Lin-Manuel Miranda perform at the Platinum Party at Buckingham Palace on June 4.

The Prince of Wales arrives onstage to deliver a speech during the Platinum Party at Buckingham Palace on June 4.

The Duke of Cambridge speaks onstage during the Platinum Party at Buckingham Palace on June 4.

The Cambridge family visit Cardiff Castle on June 4 in Cardiff, Wales.

The Duke and Prince George of Cambridge visit Cardiff Castle on June 4 in Wales.

The Duchess and Princess Charlotte of Cambridge visit Cardiff Castle on June 4 in Wales.

The Cambridge family chat with locals during a visit to Cardiff Castle on June 4.

The Cambridge family visit Cardiff Castle on June 4 in Wales.

The Cambridge family, minus Prince Louis, visit Cardiff Castle ahead of a special Jubilee concert on June 4.

The Duke and Duchess of Sussex attend the special service of thanksgiving at St. Paul's Cathedral on June 3 in London, England.

The Duke and Duchess of Cambridge attend the special service of thanksgiving at St. Paul's Cathedral on June 3 in London, England.

The Prince of Wales and Duchess of Cornwall attend the special service of thanksgiving at St. Paul's Cathedral on June 3 in London, England.

Princess Eugenie and Princess Beatrice arrive for the special service of thanksgiving St. Paul's Cathedral on June 3 in London, England.

Zara Tindall and Mike Tindall attend the special service of thanksgiving at St. Paul's Cathedral on June 3 in London, England.

Princess Anne's husband, Timothy Laurence, Sophie, Countess of Wessex, and Lady Louise Windsor attend the special service of thanksgiving at St. Paul's Cathedral on June 3 in London, England.

Peter Phillips, Meghan Markle, Prince Harry, and Zara Tindall attend the special service of thanksgiving at St. Paul's Cathedral on June 3 in London, England.

Prince Edward and Princess Anne attend the special service of thanksgiving at St. Paul's Cathedral on June 3 in London, England.

The Duke of Sussex and Duchess of Sussex arrive for the special service of thanksgiving at St. Paul's Cathedral on June 3 in London, England.

The Duke and Duchess of Cambridge, Prince of Wales, and Duchess of Cornwall make an appearance at the special service of thanksgiving at St. Paul's Cathedral on June 3 in London, England.

The Duke and Duchess of Sussex arrive for the special service of thanksgiving at St. Paul's Cathedral on June 3 in London, England.

Princess Anne and the Duchess and Duke of Cambridge chat during the special service of thanksgiving at St. Paul's Cathedral on June 3 in London, England.

The Duke and Duchess of Sussex greet the royal family during the special service of thanksgiving at St. Paul's Cathedral on June 3 in London, England.

The Duchess and Duke of Cambridge, the Duchess of Cornwall and the Prince of Wales sing during the special service of thanksgiving at St. Paul's Cathedral on June 3 in London, England.

Queen Elizabeth II steps out on the balcony of Buckingham Palace as the troops march past during the parade in London, England, on June 2.

The Prince of Wales and the Duke of Cambridge ride horseback during Trooping the Colour on June 2.

The Duchess of Cambridge and the Duchess of Cornwall wave to the crowds of people at Trooping the Colour on June 2.

Prince George, Princess Charlotte and Prince Louis make their carriage debut during the Trooping the Colour parade on June 2.

Princess Anne rides horseback at Trooping the Colour on June 2.

Prince Charles and Camilla ride in a car during the Trooping the Colour parade on June 2.

Prince Edward arrives with Sophie, Lady Louise Windsor and James, Viscount Severn in a horse-drawn carriage during Trooping the Colour on June 2.

Timothy Laurence, Princess Anne, Camilla, Duchess of Cornwall, Prince Charles, Queen Elizabeth II, Prince Louis, Kate Middleton, Princess Charlotte, Prince George, Prince William, Sophie, Countess of Wessex and James, Viscount Severn watch the RAF flypast from the balcony of Buckingham Palace during the Trooping the Colour parade on June 2.

The youngest son of Kate Middleton and Prince William -- dressed in his dad's outfit from the same event in 1985 -- closes his eyes and appears to let out a scream during the Platinum Jubilee flypast.

Prince Louis steals the spotlight with silly faces at Trooping the Colour parade on June 2.

The Duke and Duchess of Cambridge step out with their three kids during Trooping the Colour on June 2.

Prince Charles and Queen Elizabeth II during Trooping the Colour on June 2 in London, England.

The Duchess of Cambridge and her little ones look out the window during Trooping the Colour on June 2 in London, England.

Princess Beatrice, Prince George, Princess Charlotte and Prince Louis look out the window as the troops march past during the queen's birthday parade on June 2.