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.]
If anyone still had any doubts about Beyoncé's singing ability, they sure were put to rest today!
The lights and pyrotechnics and dance choreography were amazing, but the real fireworks came from Beyoncé herself!
Ch-ch-check out the video (above) to see the reunion that was, well, destined to happen!
They aren't Single Ladies anymore! They're a trio!
OMG, this blew our minds so much! We're totes going to watch it over and over!