Watch: Prince William teases Kate as they share St Patrick's Day message
Prince William and his wife Kate shared a sweet moment as they wished Irish people a happy St Patrick's Day in a video message.
William and Kate joined a host of global figures to take part in a video released by the Irish Foreign Ministry to mark the country's national day.
Opening their section, William tried out an Irish Gaelic saying – "beannachtaí na Féile Pádraig oraibh", or "Happy St Patrick's Day".
Following after him, the Duchess of Cambridge said: "We're delighted to wish you all a very happy St Patrick's Day."
Turning to his wife and gently teasing, William said: "How come you got that easy bit?"
The couple reflected on their trip to Ireland a year ago, which came just before the first UK national lockdown.
Kate said of the trip: "The warm welcome that we received everywhere was a testament to the friendship between our two countries and the strength of the relationship between the UK and Ireland."
William added: "We know that for Irish people all around the world today won't be the same as normal, but we hope you can celebrate safely in any case."
The royals both wore green as they delivered their message, with Kate in a bright blazer and William in a more muted jumper.
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During the March 2020 trip, the duchess dressed diplomatically, choosing a green outfit for her first day, a white coat on the second day and an orange jumper on the final day, making up the colours of the Irish flag.
On Wednesday afternoon, the Irish Guard shared a letter written to them by William, who is their colonel.
It read: "Sadly COVID restrictions means that we cannot be with you this year, but it has been heartening to hear about the important work that you have been doing to support the response to the pandemic across the UK."
He added: "As your Colonel, I could not be more proud of the grit and determination displayed over the last 12 months."
The video message from the Duke and Duchess of Cambridge came a day after the Queen sent a message to the Irish president to wish him a happy St Patrick's Day.
The Queen's message to Michael D. Higgins read: "On the occasion of your National Day, I would like to convey to Your Excellency my congratulations, together with my best wishes to the people of Ireland.
"This year marks ten years since my visit to Ireland, which I remember fondly, and it marks a significant centenary across these islands.
"We share ties of family, friendship and affection – the foundation of our partnership that remains as important today as ten years ago.
"Lá Fhéile Pádraig sona daoibh go léir."
The Queen made history in 2011 when she visited Ireland, becoming the first reigning UK monarch to go to the republic in 100 years.
The Royal Family has been severely restricted in its ability to carry out global trips during the last year because of rules around the coronavirus pandemic.