They have sung their songs dancing on treadmills, while testing elaborate Rube Goldberg contraptions and off-roading in a car. And in their video for the song “ The Writing’s on the Wall ”, OK Go wants to make you question reality. Equipped with only a handheld camera, the group, along with 50 video assistants, created 28 different optical illusions on its first video for the group’s EP, Hungry Ghosts. The video appears to be shot in one continuous take and shows illusions th