Before you ask, I have nothing to do with it, I simply heard about it on 
NHPR and copied text from their web site --- hence the "we..."

BTW, the leader of one of the bands is the grandson of a drummer in 
JPS's band!

John Erickson wrote:
> If you are in Boston this weekend (or need an excuse to go!), check
> this out... http://honkfest.org/
> 
> The HONK! Festival is a revolutionary street spectacle of
> never-before-seen proportions that will converge in Davis Square,
> Somerville, MA, on October 9-11, 2009!
> 
> We’ll begin to HONK! in various Boston neighborhoods Friday evening,
> and close with a bash at the Somerville Theatre on Sunday night!
> Here’s the full schedule <http://honkfest.org/schedule/>. Tickets for
> the final bash are on sale <http://tinyurl.com/mlat2n> (the rest of
> the fest is free).
> 
> A video explaining the whole thing is here... http://honkfest.org/about/#video
> 
> Traditionalists might want to be sitting down first... ;)
> 
> John