Royal fans were thrilled with a rare appearance by Prince George at the England v Wales rugby match.
The eight-year-old, who is third in line to the throne, was at Twickenham to watch the exciting Six Nations clash.
Of course, his dad Prince William was attending in his role as patron of the Welsh Rugby Union, while his mum Kate was there as patron of the Rugby Football Union.
Before kick-off, George accompanied his parents as they met representatives from the two rugby football unions and then joined them in stands for the big game.
And it seems the youngster delighted royal fans when he was caught on camera singing every single word of the national anthem God Save The Queen - alongside both William and Kate.
George could be seen looking up to both of his parents throughout the tune for reassurance as he sang the famous words.
And commenting on a video uploaded to YouTube of the moment, royal fans couldn't hide their delight at him singing them anthem, which pays tribute to his great-grandmother the Queen, whom he used to call "Gan Gan" when he was younger.
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One royal commented on the clip saying: "Wills & Kate singing national anthem was a treat.... and the shy Prince George singing for his Gan Gan."
Another said: "Bless his heart! He kept checking his parents out to see if they were singing and he got bolder."
One remarked: "It was lovely to see Prince George singing the national anthem."
And another wrote: "Wonderful outing with Mom and Dad! Prince George is such a credit to his parents and indeed the country. Loved the brightening on his face when singing God Save the Queen."
Meanwhile, also on Saturday, George revealed he's learning how to play rugby as he cheekily teased mum Kate saying: "But I haven't tackled you yet!".
As the Cambridges met RFU figures before kick-off, Kate revealed how George is rearing to start playing the sport at school
Kate explained: "He has all the kit."
After sharing that he's been learning how to tackle, he turned to his mum and cheekily quipped: "But I haven't tackled you yet!"
Kate replied, laughing: "Yes you have!"
