In Jamaican dancehalls competition for the video camera's light is stiff, so much so that dancers sometimes bleach their skin to enhance their visibility. In the Bahamas, tuxedoed students roll into prom in tricked-out sedans, staging grand red-carpet entrances that are designed to ensure they are seen being photographed. Throughout the United States and Jamaica friends pose in front of hand-painted backgrounds of Tupac, flashy cars, or brand-name...