Prince Harry no doubt knows exactly what it's like to visit the home of his father the King.
But it appears on a previous trip to the US, he also visited the beloved home of another King - Elvis Presley.
In his memoir Spare, Harry recounts a visit to Graceland, Elvis' Tennessee estate, while in America for the wedding of his and Prince William's close pal Guy Pelly to Holiday Inn heiress Lizzy Wilson.