Help us caption and translate this video on Amara.org: http://www.amara.org/en/v/BMHi/

View full lesson: http://ed.ted.com/lessons/kevin-alloca-why-videos-go-viral

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

Talk by Kevin Allocca.