Pentatonix's 8,000-Person Mannequin Challenge Has to Be the Most Impressive of Them All

By Maggie Panos

The Mannequin Challenge has swept the nation, and no place is safe. Whether you're hosting Saturday Night Live, doing CrossFit, or giving birth, you too may turn into a mannequin. (That's how this works, right?) These poor souls were just attending a Pentatonix concert when they we transformed into mannequins. This is their story.