Well, this is QUITE the accusation.
She shared a clip of the part the hitmaker stole, and called her out in the caption, writing:
[Image via Beyoncé/Marlyn Ortiz/Instagram.]
There are perhaps no women in the world more famous than Kate and Pippa Middleton, so it makes total sense that Justin is into them.
"Us American males are big fans of Pippa. We like the Middletons very much. I'm going to sound like a sleazeball. I'm going to stop right there!"
It sounds like he's a big fan of Pippa, but wouldn't mind settling for Kate either! Ha!
Unfortunately for Justin, both sisters are taken. But then again, he might be too!
Rumors have been floating around that the singer and actor got back together with Jessica Biel. Focus on your own girl, Justin!
[Image via WENN.]