What is the role popular culture plays in expressing our values of community? Take a fresh look at the icons that our collective consciousness brings to the surface and the rituals that celebrate them with this entertaining documentary filmmaker.

Shereen El Feki shows how some Arab cultures are borrowing trademarks of Western pop culture -- music videos, comics, even Barbie -- and adding a culturally appropriate twist. The hybridized media shows how two civilizations, rather than dividing, can dovetail.

Kevin Allocca is YouTube's Head of Culture & Trends, and he has deep thoughts about silly web video. In this talk from TEDYouth, he shares the 4 reasons a video goes viral.