"I guess you all know why I came this week," he said Saturday during a town hall in London. "It's no secret. Nothing was going to stop me from wishing happy birthday to her majesty, or meeting George, who was adorable."
The Obamas met the young prince before having dinner with the Duke and Duchess of Cambridge and Prince Harry at Kensington Palace on Friday. When they arrived, they found Prince George standing near the foyer and dressed for bed.
The president has been visiting Britain after talks in Saudi Arabia with Persian Gulf allies.