Queen Elizabeth 2016
Britain's Queen Elizabeth II poses with her five great-grandchildren and her two youngest grandchildren in the Green Drawing Room, part of Windsor Castle's semi-State apartments. The children are: James, Viscount Severn (left), 8, and Lady Louise (second left), 12, the children of The Earl and Countess of Wessex; Mia Tindall (holding The Queen's handbag), the two year-old-daughter of Zara and Mike Tindall; Savannah (third right), 5, and Isla Phillips (right), 3, daughters of The Queen's eldest grandson Peter Phillips and his wife Autumn; Prince George (second right), 2, and in The Queen's arms and in the tradition of Royal portraiture, the youngest great-grandchild, Princess Charlotte (11 months), children of The Duke and Duchess of Cambridge, in this official photograph, released by Buckingham Palace to mark her 90th birthday April 20, 2016Reuters

Queen Elizabeth II is celebrating her 90th birthday on April 21, and while England started the celebrations in the beginning of April, the Queen herself has gotten around to it now. Kensington Palace and British Monarchy have been sharing live updates on the Queen's celebrations starting with the huge crowd that has gathered in front of Windsor Castle.

The Queen has been getting an overwhelming amount of wishes on social media as well, and in response to the huge outpouring of love, she wished her fellow 90-year-olds. "I send my best wishes to those who are celebrating their 90th birthday...on this shared occasion, I send my warm congratulations to you," a tweet from British Monarchy read.

People who have camped overnight to get a glimpse of the queen and wish her in person got a chance to do so when she stepped outside Windsor Castle with the Duke of Edinburgh in a lime green dress and matching hat. After wishing the fans outside, she cut the beautiful three-tier cake baked by Nadiya Hussain, winner of the Great British Bake off 2015.

Also See:  26 iconic photos of the Queen Elizabeth since 1986

She then met local Windsor residents who are all celebrating the 90th birthday in 2016. See the photos from these events shared by British Monarchy and Kensington Palace below:

British Prime Minister David Cameron , Royal Navy, Ministry of Defence, Olympic Flame and many others wish the Queen a happy birthday. Cameron even said, "Rarely has anyone in public life served for so long, served so brilliantly."