The Obamas Dine At Kensington Palace on April 22, 2016 in London, England.

(C) Mrs Obama recently worked with Kate (L) on a mental health project and has helped Prince Harry with the Invictus Games, a Paralympic-style event for injured servicemen and women which will be held in Orlando in May

Prince William, Duke of Cambridge (left) speaks with President of the United States Barack Obama in the Drawing Room of Apartment 1A Kensington Palace, London, prior to a private dinner hosted by the Duke and Duchess in their official residence at the palace

Catherine, Duchess of Cambridge was wearing a three quarter length blue and purple patterned, LK Bennett dress, while Mrs Obama wore a camel colored dress

Prince William, Duke of Cambridge and U.S. President Barack Obama were deep in conversation at Kensington Palace before their meal



Catherine, Duchess of Cambridge in the Drawing Room of Apartment 1A Kensington Palace as they attend a dinner on April 22, 2016 in London, England.

Prince William, Duke of Cambridge speaks with US President Barack Obama as Catherine, Duchess of Cambridge speaks with First Lady of the United States Michelle Obama and Prince Harry in the Drawing Room of Apartment 1A Kensington Palace as they attend a dinner on April 22, 2016 in London, England. 

President Barack Obama, Prince William, Duke of Cambridge and First Lady Michelle Obama talks with Prince George at Kensington Palace on April 22, 2016 in London, England.

President Barack Obama talks with the Duke of Cambridge while the Duchess of Cambridge plays with Prince George on rocking horse

Prince Harry, US President Barack Obama, First Lady Michelle Obama and Prince William, Duke of Cambridge pose as they attend a dinner at Kensington Palace on April 22, 2016 in London, England. 

Prince Harry, Catherine, Duchess of Cambridge, Prince William, Duke of Cambridge, US President Barack Obama and First Lady Michelle Obama speak as they attend a dinner at Kensington Palace on April 22, 2016 in London, England.

US President Barack Obama, First Lady Michelle Obama and Prince William, Duke of Cambridge pose as they attend a dinner at Kensington Palace on April 22, 2016 in London, England.

Catherine, Duchess of Cambridge, Prince Harry, First Lady Michelle Obama and US President Barack Obama greet each other as they attend a dinner at Kensington Palace on April 22, 2016 in London, England. 

Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge greet US President Barack Obama and First Lady Michelle Obama as they attend a dinner at Kensington Palace on April 22, 2016 in London, England.

Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge greet US President Barack Obama and First Lady Michelle Obama as they attend a dinner at Kensington Palace on April 22, 2016 in London, England

First Lady Michelle Obama and US President Barack Obama arrive for a dinner with Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge and Prince Harry at Kensington Palace on April 22, 2016 in London, England.

Catherine, Duchess of Cambridge, Prince Harry, First Lady Michelle Obama and US President Barack Obama greet each other as they attend a dinner at Kensington Palace on April 22, 2016 in London, England. 

 Catherine, Duchess of Cambridge, Prince Harry, First Lady Michelle Obama and US President Barack Obama greet each other as they attend a dinner at Kensington Palace on April 22, 2016 in London, England. 

Prince Harry, Catherine, Duchess of Cambridge, Prince William, Duke of Cambridge, US President Barack Obama and First Lady Michelle Obama speak as they attend a dinner at Kensington Palace on April 22, 2016 in London, England.

Prince Harry, Catherine, Duchess of Cambridge, Prince William, Duke of Cambridge, US President Barack Obama and First Lady Michelle Obama speak as they attend a dinner at Kensington Palace on April 22, 2016 in London, England.

 Prince Harry, Catherine, Duchess of Cambridge, Prince William, Duke of Cambridge, US President Barack Obama and First Lady Michelle Obama speak as they attend a dinner at Kensington Palace on April 22, 2016 in London, England.

Prince Harry, Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge wait for US President Barack Obama and First Lady Michelle Obama as they attend a dinner at Kensington Palace on April 22, 2016 in London, England.

Prince Harry, US President Barack Obama, First Lady Michelle Obama, Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge pose as they attend a dinner at Kensington Palace on April 22, 2016 in London, England. 

Catherine, Duchess of Cambridge speaks with First Lady of the United States Michelle Obama in the Drawing Room of Apartment 1A Kensington Palace as they attend a dinner on April 22, 2016 in London, England.

Hello, Mr President: Barack Obama and First Lady Michelle crouch down to meet and shake hands with Prince George at Kensington Palace

(L-R) President Barack Obama talks with the Prince William, Duke of Cambridge as Prince George plays on his rocking horse at Kensington Palace on April 22, 2016 in London, England. 

Kate was wearing belted a printed long sleeve, sheer dress in pink and Mediterranean blue from L.K Bennett. Having accessorized with simple jewelry in silver and low-heeled pumps

The Obamas have arrived at Kensington Palace tonight (22 April 2016) for an informal dinner with Prince William (2-R), Kate Middleton (R) and Prince Harry (L) , just hours after the U.S. President's controversial intervention in the Brexit debate

(L-R) Prince Harry, US President Barack Obama, First Lady Michelle Obama, Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge pose as they attend a dinner at Kensington Palace on April 22, 2016 in London, England.

US President Barack Obama (C) holds an umbrella over US First Lady Michelle Obama (R) and Catherine, Duchess of Cambridge (L) as they and Britain's Prince William, Duke of Cambridge (R) go inside for a dinner at Kensington Palace in London, April 22, 2016.

US President Barack Obama (C) holds an umbrella over US First Lady Michelle Obama (R) and Catherine, Duchess of Cambridge (L) as the Obamas arrive for dinner at Kensington Palace in London, April 22, 2016.