LOOK: Prince George meets Obamas in his pajamas

MANILA, Philippines – US President Barack Obama and first lady, Michelle Obama, are on a 3-day visit to the UK for talks with Prime Minister David Cameron, but they also spent some time with the royal family – and met 2-year-old Prince George.

Before a press conference with the prime minister, Barack and Michelle had lunch at Windsor Castle with Queen Elizabeth II, who turned 90 on Thursday, and her husband Prince Philip.

They later had dinner with the monarch's grandson Prince William, his wife Kate and brother Prince Harry.

. @BarackObama and @MichelleObama arrive at Kensington Palace for dinner with The Duke, Duchess and Prince Harry pic.twitter.com/ZdXMj24pCL — Kensington Palace (@KensingtonRoyal) April 22, 2016


The Duke and Duchess and Prince Harry welcome @POTUS and @FLOTUS to Kensington Palace pic.twitter.com/zrlimthPsP — Kensington Palace (@KensingtonRoyal) April 22, 2016


The Duke, Duchess and Prince Harry chat with the President and First Lady before dinner at Kensington Palace pic.twitter.com/vWCru1ifDW — Kensington Palace (@KensingtonRoyal) April 22, 2016


William and Kate's two-year-old son Prince George, third in line to the throne, stayed up past his bedtime to meet the Obamas.

Prince George meets The President and First Lady of the United States pic.twitter.com/HZxelhSSr4 — Kensington Palace (@KensingtonRoyal) April 22, 2016


George, who was dressed for bed in his pajamas and a white dressing gown, played on a rocking horse they gave him when he was born.

Prince George thanks @BarackObama for his rocking horse, given to him when he was born pic.twitter.com/xXIF8QeQvz — Kensington Palace (@KensingtonRoyal) April 22, 2016


– with reports from Andrew Beatty, AFP/Rappler.com