The Keeping Up With The Kardashians star became friends with Bey and Jay through her husband Kanye West, so you'd think if anyone knows what's happening, it might be Kim?
Turns out, that's not the case. Or if she does, she's keeping very tight-lipped about it.
When asked for her thoughts on the rumoured trouble during an appearance on Watch What Happens Live, the star replied: "Oh, I don't know. You just always hope that nothing like that's true, and you just wish them the best."
Beyoncé and Jay Z have not addressed the speculation of marriage trouble, although Bey has indirectly hit back via Instagram, sharing images of herself, Jay and their daughter Blue looking like a picture perfect family.
She also posed in a Mrs Carter shirt the other week – another indirect sign that all is okay?
Kim, meanwhile, is no stranger to rumours involving Beyonce. There's always been widespread claims that the women don't get on – although Kim, 33, has frequently dismissed them.
Last year, she told US radio show Sway in the Morning: "It's so not true. She is one of the sweetest people I have ever met. She's so sweet.
"I have no idea where these things come from. We've never even talked about it. It doesn't even come up in conversation, probably because they get so many ridiculous stories brought to them every day with things that are true and not true. And vice-versa."
Eyebrows were raised in May when Beyonce and Jay Z didn't attend Kim and Kanye's wedding in Florence, Italy, but Kanye later said his close friends' absence hadn't concerned him.
"It doesn't even matter to me whatsoever, who would show up," he told GQ. "Because the most important person to show up there, to me, was Kim. And that's all that matters to me. I had to fight for that for seven years."
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