A photography business called Alphabet Photography organized a flash mob in Welland, Ontario, Canada. No big deal. But what they did was.
More than 100 singers were coordinated to, at the appropriate times, rise from their seats in the local mall's food court for a performance of the Hallelujah Chorus. From a single singer at the beginning to a full choir, rising from their seats in normal street clothes. As typical with flash mobs, the looks on the faces of unsuspecting observers are priceless.