Prince William and Princess Kate delighted royal fans as they exchanged a loving gesture towards one another during the VE Day 80th anniversary concert on Thursday evening.
The Prince and Princess of Wales joined King Charles, Queen Camilla and other senior royals at London's Horse Guards Parade for the special event.
The couple were present at the celebration that marked the end of World War II in Europe, where the King delivered a powerful commemorative speech.
Before taking their seats, Prince William was seen placing a gentle reassuring hand on Kate's back as she spoke with fellow concert attendees.
The Prince and Princess of Wales shared a sweet gesture during VE day
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The pair were then seen speaking to 107-year-old war veteran, Harry Richardson, before they sat down.
As they did, Kate was seen replicating her husband's gesture, placing her arm around William.
Both were seen giggling together and smiling at each other during proceedings.
Later, they also shared an emotional reaction to a performance from cellist Sheku Kanneh-Mason.
William placed a supportive hand on Kate's back as they arrived
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The 26-year-old virtuoso played during Meghan Markle and Prince Harry's wedding in 2018.
Willaim and Kate’s children, Prince George, 11, Princess Charlotte, 10, and Prince Louis, seven, did not attend the concert as it was a school night.
The concert, hosted by Zoe Ball, brought together music, storytelling, and tributes to remember those who served during the Second World War.
Stars taking to the stage at the concert included Freya Ridings, Fleur East and actor Brian Cox as well as Strictly Come Dancing dancers Amy Dowden, Carlos Gu and Kai Widdrington.
Kate was seen to reciprocate the heartwarming move as they took their seats.
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Capping the night was a stirring speech from King Charles at precisely 9pm, the exact time his grandfather King George VI addressed the nation from Buckingham Palace on May 8, 1945.
In the speech, he called on the country to "rededicate ourselves" to "the cause of freedom" and "the prevention of conflict".
Quoting his grandfather's powerful words, the King said that victory "lead to a lasting peace, founded on justice and established in goodwill".
Charles emphasised that the Allied victory was "a result of unity between nations, races, religions and ideologies, fighting back against an existential threat to humanity".
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King Charles delivered a powerful speech at Thursday's event
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"Their collective endeavour remains a powerful reminder of what can be achieved when countries stand together in the face of tyranny," he added.
Earlier on Thursday, the Prince and Princess of Wales appeared alongside the King and Queen and other major royals at a Thanksgiving Service at Westminster Abbey.
Upon arrival, the Royal Family joined the congregation in observing a national two-minute silence of reflection and remembrance.
King Charles laid a wreath at the Grave of the Unknown Warrior. The Prince of Wales followed suit in the solemn ceremony.
Later, Queen Camilla led the Waleses' members of the Royal Family in laying flowers at the Innocent Victims' Memorial, located outside the Abbey's West Door.
