"The flash mobs and Santa sightings are more than entertainment," the release reads. "They're a reminder that even in the hustle of holiday travel, the season's spirit of joy and connection is ...

The United States Airforce Band performed their first-ever Holiday Flash Mob at the National Air and Space Museum in Washington D.C. on December 3 to kick off their holiday concert season.

Why do they do this? Just for fun. Flash mobs are also organized on the spot for political rallies as soon as some controversial event takes place. The flash mob is quickly organized by email ...