Louis, 5, showed his personality once again at the historic event.

After attending his mother's coronation 70 years ago, King Charles III was coronated in his own right in a traditional ceremony with modern touches.

Protestors chanted 'not my king' during the coronation.

Perry and Richie are two performers for Sunday's concert on a star studded list.

Here are some of the biggest highlights from the ceremony celebrating the new monarch.

Prince George, Princess Charlotte and Prince Louis captured the world's attention as they attended their grandfather's coronation ceremony.

Prince Harry and Princess Anne, along with the Prince and Princess of Wales, are among the royals attending the coronation.

For decades, the two have remained side by side through the ups and downs.

More familiar faces showed up to attend the ceremony celebrating Charles as the new monarch

King Charles III's coronation will take place at Westminster Abbey on May 6.

The coronation will take place in London on Saturday, May 6.

Anti-monarchists are expected to stage large-scale protests in London on Saturday during the coronation of Britain's King Charles III.

A look at the numbers behind the royal coronation of King Charles III.

ABC News’ Mona Kosar Abdi spoke with ABC News royal contributor Omid Scobie about questions surrounding the coronation of King Charles III and historical controversy around the monarchy.

The streets of London are already filling as King Charles is set to be crowned before a worldwide audience.

The 74-year-old monarch and his wife, Camilla, will be crowned Saturday at Westminster Abbey with Princes Willian and Harry looking on.

London Mayor Sadiq Khan joins “GMA3” to discuss preparations, including security measures, ahead of the King Charles III’s coronation ceremony at Westminster Abbey on May 6.

“GMA” has all the details the world can expect to see on Saturday.

The Princess of Wales mingled with world leaders at a reception for King Charles III, ahead of the coronation.

Ailsa Anderson, former press secretary to Queen Elizabeth, talks about the final preparations that are underway before King Charles' coronation.

All eyes will be on King Charles III and Queen Camilla during this weekend's coronation, but the couple have been under the lens for decades.

King Charles III will be crowned on Saturday and “GMA” is in London with all of the details on what will take place during the historic event.

ABC News contributor Mike Muse breaks down the centuries of colonialism the royal family contributed to and how King Charles can usher in a time of modernization for the monarchy.

Everything is falling into place for the coronation from the flowers to the coronation anthem written by Andrew Lloyd Webber.

“GMA’s” Lara Spencer and Deborah Roberts take on London, including having high tea with Tom Athron of Fortnum and Mason.

Prince Harry will attend the coronation in England on his own.

As king, Charles is the sovereign of 56 Commonwealth countries.

Royal contributor Sharon Carpenter joins “GMA3” to share details surrounding the festivities of King Charles III’s coronation that will take place on May 6 at Westminster Abbey in London.

With the UK government picking up the bill for the coronation, some are asking questions about what the Monarchy is worth and how it plays into modern day England.

As Buckingham Palace prepares for all the pomp and circumstance at the coronation, some of the royal children will also get a moment in the spotlight.

William and Kate, the Prince and Princess of Wales, stopped by a pub in London to check out the celebrations ahead of King Charles III's coronation.

In the darkness of the early morning, the coronation procession dress rehearsal took place. Later, members of the royal family later gathered at Westminster Abbey.

ABC News’ Lara Spencer shares the latest details as the United Kingdom readies itself for Saturday’s coronation of King Charles III.

Charles helped rejuvenate the historic 18th century estate in Scotland, which has brought new life to a former coal mining town and saved an important piece of Scottish history.

As King Charles III gears up for his coronation later this week, “GMA” is live in Scotland to take a look at kilts, a favorite of Britain’s new monarch.

Elizabeth had become queen in 1952 on the death of her father.

ABC News royal contributor Omid Scobie breaks down the family dynamics at play as Charles Prince William and Prince Harry reunite for the first time publicly since last year.

Royals insider Omid Scobie discusses all things coronation from a press room inside Buckingham Palace, including British King Charles’ love for the environment and what to expect during the ceremony.

The Princess Royal told CBC News her brother won’t be changed by his new role as king

Poundbury, a community Charles helped design, is focused on affordable housing and encourages a more sustainable way of life.

With just a few days left until the coronation, ABC News’ James Longman and royal contributor Victoria Murphy break down King Charles III’s conservation and environmental efforts.

Duchess Meghan and their two children will not attend the coronation.

At a time when religion is fueling tensions around the world, King Charles III is trying to bridge the differences between the faith groups that make up Britain’s increasingly diverse society

King Charles III is the oldest child of Queen Elizabeth II, whom he succeeded.

King Charles III wants to protect the planet for future generations -- a passion he has highlighted throughout his decades as monarch-in-waiting.

ABC News royals contributor Victoria Murphy gives a preview of what to expect at the coronation of King Charles III, including the new pledge, expected attendees and more.

Princess Diana's former secretary Patrick Jephson is speaking out ahead of King Charles III's coronation.

ABC News’ Maggie Rulli and ABC News royal contributor Imogen Lloyd Webber break down a busy week in the United Kingdom as Buckingham Palace gears up for the coronation of King Charles III.

In the 50 years since Charles took up his role as the Prince of Wales, “GMA” looks back at his 1969 investiture and the pressure Charles faced to forge a relationship with the people of Wales.

The late princess’s personal secretary Patrick Jephson penned an essay about the legacy Diana left behind as King Charles III and Queen Camilla prepare for the coronation.