Kate, Princess of Wales broke with royal tradition in a subtle way during the Coronation concert on Sunday.
The royals enjoyed themselves as they watched stars such as Katy Perry, Lionel Richie and Take That, as well as a blind pianist named Lucy, 13.
And royal commentator Daniela Elser points out that Kate took a different approach to the event, wearing a suit instead of a dress.
Ms Elser highlighted that Kate never wore this kind of attire when appearing alongside the late Queen Elizabeth II, perhaps suggesting a new direction being taken by the Firm.
Writing for News.com.au, Ms Elser hailed Kate’s “bold” choice: “I’m not saying we are about to see her burning her sensible bras anytime soon or plotting to take down the patriarchy in that spare half-hour before she has to do the school run, but what’s clear is that the Princess of Wales clearly feels increasingly comfortable doing things her way.
“Sure, maybe wearing a suit isn’t quite there with keeping the Spanish Armada at bay, but Kate in trousers for a Royal Family engagement? I think that is something to celebrate.”
William and Kate also took the opportunity on Sunday to go on a walkabout and speak with royal fans and well-wishers in Windsor.
The Prince and Princess of Wales sipped homemade cocktails while talking to those gathered on the streets.
William also provided one of the highlights of the Coronation concert later that evening, paying tribute to his “Pa”.
He added that the late Quen Elizabeth II would be “proud”.
In his speech, William said: “As my grandmother said when she was crowned, coronations are a declaration of our hopes for the future.
“And I know she’s up there, fondly keeping an eye on us. She would be a very proud mother.”
He added: “My father’s first words on entering Westminster Abbey yesterday were a pledge of service.
“It was a pledge to continue to serve.
“Because for over 50 years, in every corner of the UK, across the Commonwealth, and around the world, he has dedicated himself to serve others, both current and future generations, and those whose memory must not be neglected.
“Pa, we are all so proud of you.”
At the end of the speech, William vowed to continue serving the British public.
He said: “Your service inspires us all, and tonight we celebrate you too.
“I commit myself to serve you all.
“God save the King!”