TODAY Meghan Markle and Prince Harry's adorable son Archie celebrates his first birthday.
Now, the Duchess of Sussex, 38, has revealed her sweet nickname for her little boy.
Royal fans were treated to a cute video of Prince Harry's wife reading their one-year-old a children's story in a post shared on Save The Children's page.
As Meghan animatedly told the story of 'Duck! Rabbit!' in what appears to be their Los Angeles home, Archie began to wriggle on her lap.
At one point she said: "Let's go to the next page. Look Arch!"
Later on, he seemed to become distracted and reached out to a nearby book, causing the duchess laughingly to exclaim: "Let's finish this book first".
The impromptu nickname reveal - certain to delight viewers - came as the duke, 35, who was filming the two-minute clip could be heard saying "quack, quack, quack" in the background.
Last year, Meghan revealed during the Africa royal tour that she and Harry referred to their baby as "Bubba".
In a video of the couple about to meet Archbishop Desmond Tutu with Archie, the duchess could be heard letting slip the sweet moniker.
For the story time today, Meghan wore a casual denim shirt and shorts, and her hair in a low bun.
Captioning the latest clip, charity Save The Children wrote: "'Duck! Rabbit!' with Meghan, The Duchess of Sussex (and Harry, The Duke of Sussex behind the camera), read to their son Archie for his 1st birthday. Happy Birthday, Archie!
"Thank you #DuchessMeghan for helping us to raise urgent funds for our coronavirus appeal by reading 'Duck! Rabbit' by @akrfoundation, illustrated by @tlichtenheld (published by @chroniclekidsbooks)."
It comes as social media users couldn't help but notice how similar Archie looked to his dad.
Earlier today, his aunt and uncle, Kate Middleton and Prince William, wished their nephew a "very happy" first birthday.
The little boy - who is seventh in line to the throne - is expected to mark his first birthday with a Zoom call to the Cambridges.
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In other royal news, we told you how Meghan wowed in a previously unseen fashion photo shoot.
We also revealed how the Queen once admitted to "begrudging" the amount of work she had to do.
And Duchess of Cambridge had her "heart set" on a different name for Prince George.