When one lady asked for volunteers to join her at a Rivertown Mall in Grandville, Michigan, to sing "Amazing Grace," 250 people responded with RSVPs, and over 1,000 showed up at the mall. What makes this different from other "flash mobs" is that the lyrics were given out in a high-quality gospel tract form (so that anyone could join in with the singing). "Fortunately the singing at the Rivertown Mall was video-taped, and it brought tears to my eyes," says Ray Comfort, who came up with the idea. "In the clip you can see people holding the tracts as they...