We know the cast of Sleepy Hollow is familiar with the Headless Horseman, but how well-versed are they with other headless heavyweights?

On the set: Go behind the scenes of Sleepy Hollow

To get to the bottom of this, TVGuide.com visited the Wilmington, N.C., set of Sleepy to quiz the cast on everyone from decapitated Destiny's Child to beheaded Britney Spears. But you'll never believe who Lyndie Greenwood mistook for Michelle Obama!