Supergroup Pentatonix's Unique Chilling Spin On "Hallelujah" Is Going Viral

Pentatonix began with friends who grew up together in Texas that all have a passion for music. But what makes them so incredibly unique is that they perform with no instruments at all. They create all their sound a cappella and amaze listeners with not only their talented singing voices but also the background ?music? that works together so beautifully to create mesmerizing harmonies. And the proof of their talent and success is shown with more than 2.8 million albums sold, not to mention their multiple Grammy awards and sold out venues wherever they perform. Just sit back and listen as they sing ?Hallelujah."