Queen Elizabeth II, Britain's longest reigning monarch, celebrated her 92nd birthday on Saturday.
There will be a star-studded concert in the evening, in which Sting & Shaggy, Sir Tom Jones, Kylie Minogue, Craig David, Anne Marie, Shawn Mendes, Ladysmith Black Mambazo and the BBC Concert Orchestra will perform at the Royal Albert Hall, billed as the "Queen's Birthday Party".
Elizabeth was born on April 21, 1926, at 17 Bruton Street in central London and became queen in 1952 at the age 25, meaning she has now reigned for more than 66 years.
However the celebrations won't be over when the weekend is because she has another birthday around the corner.
Queen's official birthday usually falls on the second Saturday in the month of June.
Sorry, this content isn't available on your device.
The queen celebrates two birthdays yearly: Her precise birthday on April. 21, which she normally marks privately together with her household, and her "official birthday" in the summertime.
The concert comes at the end of a week in which leaders and dignitaries from 53 countries came to London for the Commonwealth Heads of Government Meeting.
The Royal Commonwealth Society, which has the Queen as patron and is 150 years old this year, has put the event together.
As is tradition, Britain will also mark the special day with a 41-gun salute in Hyde Park, a 21-gun salute in Windsor Great Park and a 62 gun-salute at the Tower of London at noon.
We will also see Harry and Meghan take to the balcony of Buckingham Palace for the first time as man and wife.