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.]
Oooh Zooey Deschanel!
Ever since we heard her sing in Elf, we never wanted her to stop!
Luckily, she never did. She and Matt Ward have been She & Him since 2006.
They're an indie band, but they're fabulous!
Watch them perform a Christmas classic on Ellen!
Press play and be merry!