In a country nearly devoid of Internet access, the weekly distributors of El Paquete create a window to online content. Huddled around a laptop at the bottom of a stairwell in Havana, a group of three teenage boys banter as they skip between video clips and music. A fourth arrives with some ice cream, which completes a scene reminiscent of teenagers killing time on YouTube. They play an amateur music video in which the singer, looking for a laugh, periodically bangs his head against the wall. Then Beyoncé. Chris Brown.