Street-music festivals, where fun-loving bands jam amongst the people, have exploded in popularity in recent years, and alot of it has to do with the The Honk! Festival of Activist Street Bands in Boston. One part New Orleans second line, one part hippie jam fest, one part street party, the concept looks good on paper! The first festival succeeded spectacularly in 2006 and has since spread like wildfire to Austin, Seattle, Rio, Detroit, NYC, and Australia. WBUR in Boston details the origins.