Watch This Baby Completely Lose It When She Hears Katy Perry’s “Dark Horse”

At a loss for how to calm your baby down? Try blasting Katy Perry’s “Dark Horse” — apparently, that will do the trick.
 
But if your baby is still crying, then maybe try playing “Copy of A” by Nine Inch Nails. Or at least that worked for this youngster.
 
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WATCH: 5-Year-Old Cancer Survivor Stars in Her Own Katy Perry Music Video