A Cappella Medley of Beyonce's Greatest Hits Is Irreplaceable

Bow down, it's time to pay respect to the Queen B — a cappella style

The brilliant singers of Pentatonix made a Beyoncé medley of her greatest hits from Destiny's Child to "Grown Woman." It's catchy and bootylicious — a tough feat, considering nobody can do Beyoncé as well as Beyoncé can

Pentatonix was the third-season winners of NBC's The Sing Off, and since then has cultivated a huge Facebook following with its gorgeous and unexpected covers (like this "Gangnam Style" one).

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