The Duchess of Sussex, who is pregnant, will be under intense scrutiny this year as the Royal Family attend the traditional Christmas Day church service; with observers looking for the slightest hint of friction.
The incident supposedly took place before Meghan's wedding to Prince Harry, with Kate calling Meghan out for being rude to her staff, saying "That's unacceptable, they're my staff and I speak to them".
Williams, who welcomed daughter Alexis Olympia with husband Alexis Ohanian in September 2017, also shared that while she is giving the Duchess of Sussex plenty of advice from one new mom to a soon-to-be parent, Meghan "still gives me more advice".
The Obamas have always been friends of the British Royal family, especially when it comes to Prince William and Prince Harry.
GETTY IMAGESSerena Williams and partner Alexis Ohanian were guests at Prince Harry and Meghan Markle's wedding in May
Last night, the couple attended a Christmas carol concert in Chelsea held for The Henry van Straubenzee Memorial Fund, a charity that both Prince William and Prince Harry are both patrons of. "It's so insane, I totally changed, and it literally is like a switch".
Especially because this time it's about putting in her two cents! Her BFF Serena had some tips for the mom-to-be, including being a little less nice sometimes!
They also congratulate Mark Teschner, who casted General Hospital, for choosing Meghan and giving the Duchess "her first network television credit". She has to find a balance between royal tradition, heritage, and more proletariat customs, such as the "suburban" habit of making young boys wear pants. Ahead of the match, Serena opened up about having her support.
Though we've not got full length images of her outfit, we can see that Meghan wore a chic black dress to join the round table. "I can't wait for that!"