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.]
Acuvue presented Demi Lovato with the new Inspire Award for her work with the Love Is Louder campaign at this year's Teen Choice Awards.
Demi also won the Best Summer Song TCA for Skyscraper!
You go, Demi, you go!
Watch her acceptance speech above!