On Saturday 19 May, Meghan Markle will walk down the aisle at St George's Chapel in Windsor Castle, in front of her nearest and dearest, to say 'I do' to her fiancé, Prince Harry.
In the lead up to the wedding, the newly-engaged couple will no doubt be whittling down their wedding guestlist, ensuring that their best friends (including Priyanka Chopra and Serena Williams for Markle) make the cut, as well as royal dignitaries, politicians and relatives from further afield.
However, unfortunately for the pair, one of Prince Harry's best friends is unlikely to receive a 'save the date' card in the post, as a result of his connection to President Donald Trump.
The Daily Mail reports the 32-year-old royal won't asking the former Democrate US President to his upcoming nuptials following speculation an invite would be a 'diplomatic timebomb' if Obama was invited and Trump wasn't.
'President Trump will not be invited because the wedding will be for friends and family only,' a source told the publication.
'It won't be a state occasion. If Mr Obama was invited, the invitation could look like a snub to Mr Trump, and His Royal Highness would not wish to cause a diplomatic row,' the sourced added, months after Barak and his wife Michelle congratulated Harry and Meghan on their engagement.
Michelle and I are delighted to congratulate Prince Harry and Meghan Markle on their engagement. We wish you a lifetime of joy and happiness together.- Barack Obama (@BarackObama) November 27, 2017
An invitation for Obama would undoubtedly have ruffled some feathers with the Republican President who recently cancelled a scheduled visit to London next month to open the new £750 million US embassy.
The president claimed on Twitter that the reason for calling off the trip was his displeasure at Barack Obama having sold the current embassy for 'peanuts'
'Bad deal,' he wrote.
In actual fact, the embassy's plan to move from Mayfair to Nine Elms in London was first reported in October 2008, when George W Bush was still president, but you know, we have a feeling Trump isn't too keen on dealing with facts these days.
Fortunately for Harry's grandmother, Queen Elizabeth II, she wasn't due to meet Trump until a full state visit at a later date.
When Harry was a guest editor of Radio 4's Today show last month, he was asked if he would be inviting Obama, who agreed to be interviewed for the programme.
'I don't know about that,' he replied.