Their other halves are BFFs.
But it's no secret that there's not a lot of love lost between Kim Kardashian andBeyoncé and it sounds like things are about to get even frostier.
According to reports, the pop superstar isn't too keen on attending the reality star's impending nuptials to Kanye West - and has refused to be filmed for KUWTK. Bit awks.
[ Jay Z refuses to be Kanye West's best man at wedding to Kim Kardashian unless his family is kept away from ANY reality television cameras? ]
[ Kim Kardashian and Kanye West sign prenup: she'll receive $1 million for each year they're married ]
While it seems that Queen B WILL be at the Parisian ceremony in May, to please hubbie Jay Z, she has reportedly told Kim and Kanye that she will NOT appear in any of the E! reality show.
A source told RadarOnline:"Jay andBeyoncé’s wedding was shrouded in secrecy and extreme lengths were made to make sure their wedding was an intimate affair for friends and family, only.
"This will be the complete opposite. She thinks it’s just tacky."
The Drunk In Love star reportedly told Kanye that "under no circumstances will she be a part of any filming on the wedding day if it’s for Kim’s reality show."
But while Bey is clearly not unhappy about the whole thing, if she doesn't attend than it will be seen as one serious snub to her hubbie's bestie.
The source added: "She knows she’ll have to go to the wedding, but really does not to want to."
It's only recently been revealed that the ceremony, which will be held in Paris on May 24, will be filmed for Kim's E! show.
While Kanye was originally against the blow-out ceremony being part of the reality show, he was eventually convinced by the family and producers to let the cameras roll.