A big Happy Birthday shout-out to the Queen -- she turns 90 today.
It's her biological birthday, but not to be confused with her official birthday in June.
This year, she kicked the party off with a series of pre-birthday events.
So how does a near nonagenarian monarch kick up her heels in the birthday lead up?
A visit to the Royal Mail, as it celebrated a similarly impressive 500-year anniversary. There was an appraisal of the forthcoming birthday stamp, a band stand opening, and tributes from the family.
"As soon as we came back to Kensington she was one of our first visitors," Duchess Catherine of Cambridge says.
"I think she was very fond of [great-granddaughter] Charlotte, always watching what she's up to.
"[Great-grandson] George is only two-and-a-half [and] he calls her 'Gan Gan'. She always leaves a little gift or something in their room when we go and stay."
"She has enormous patience, you rarely see her lose her temper," says Prince Charles.
"If she does everyone says, 'Argghhh', but patience and fortitude and a sort of quiet determination."
The day's outing lasted just a couple of hours -- the Queen was back to the castle for lunch.
For today's actual, proper birthday, thousands will come to watch and cheer as she walks about in Windsor.
And that's how you party like a Queen at 90.