Did you spot the Duchess of Cornwall's grandchildren at Trooping the Colour?

Princess Charlotte as a bridesmaid

Princess Charlotte as a bridesmaid

Britain's Kensington Palace has announced that Prince Harry and his wife Meghan will be visiting Tonga and Fiji during their October tour to Australia and New Zealand.

The tour for the newlywed royal couple will revolve around the 2018 Sydney Invictus Games which is scheduled from October 20 - 28.

"Their Royal Highnesses have been invited to visit the Realms of Australia and New Zealand by the countries' respective governments", said the official announcement.

Meghan Markle, the Duchess of Sussex, made her Buckingham Palace balcony debut during Trooping the Colour 2018.

The pair somehow glanced over to each other at the same time, and Meghan blurted "nervous" with a coy smile.

The couple will follow in the footsteps of Prince Harry's parents, Charles and Diana, who travelled to Australia and New Zealand on their first overseas tour together.

For Guardsman Charanpreet Singh Lall the event is not only his first Trooping the Colour, but also marks the first time a member of the Coldstream Guards has taken part wearing a turban.

He says Prince Harry and Princess Meghan have captured the hearts of the Fijian people and they look forward to warmly welcoming them and showing them our special brand of Fijian hospitality.

There appears to be no royal protocol against the design, as Kate Middleton has worn similar dresses in the past.

All eyes were on Meghan's stunning white wedding gown by Clare Waight Keller for Givenchy on her wedding day.

Prince Harry kept Meghan clued in about how the event works.

At the very important celebration, Meghan opted for a custom Carolina Herrera ensemble that bared her shoulders and arms, which apparently is a no-no for royal women at the yearly event-at least until now.

The Queen led the way onto the balcony, closely following by Prince William and Kate, who ushered Prince George and Princess Charlotte to the front for a specatular view of the birthday flypast.