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.]
But a trailer is like a sonogram; it gives you an idea of the basic shape, but you never really know until you pop the thing out whether or not it's going to have horns and eat people!
[Image via NBC.]