There are two Prince Louis in town now, and Mr. Tomlinson already has a special gift in store for Will and Kate's new baby boy.
Meanwhile, Judith Rowbotham was surprised with Prince William and Middleton's choice of name.
It's a charming tribute to the new Prince, and has got Disney fans all excited at the prospect of having a King Louis (or should we say Louie).
While the little prince's name was not immediately released, it was known that he would have a mouthful of a title.
Britain has never had a King Louis, but France had 16 of them before the country's 1789 revolution.
Bookies' favourites for the new royal's name had included Alexander, Arthur, James, Philip, and Albert.
Prince Harry and Markle will be getting married at St. George's Chapel in Windsor, England, with about 600 guests, possibly including several celebrities, that could include Elton John, David Beckham, the Spice Girls and Serena Williams.
On Thursday evening at an event with Prince Harry, William revealed that the couple were still deciding, telling reporters who asked about the name: "I'm working on that".
Louis's names are nothing new: Louis itself is one of Prince William's middle names and one of big brother Prince George's middle names. It's a name more popularly associated with the French monarchy.
While the name Louis does not have especially strong ties to the British monarchy, it is believed the newborn may be named after Lord Louis Mountbatten, Prince Charles' great-uncle.