Meet Chloe, 14, and her little sister Halle, 12 and watch them sing Beyoncé's "Pretty Hurts." It will blow your mind. But you're not alone: Beyoncé herself watched their cover and shouted out the adorable sisters for their gorgeous voices and phenomenal talent on her Facebook page. Chloe and Halle's voices will warm your heart, even if your digits are crumbling from the polar vortex.