My birthday idea

My (gregorian calendar) birthday is on the middle day of the World Social Forum, January 22nd. My idea for that day is to sing. I picture finding a place in the middle, or maybe the corner, of some central area and start asking people to share their songs of peace, struggle, revolution and nature. Every culture has songs like this, and music of course is a powerful way of building solidarity and grounding, communicating passion and words of wisdom. We don't even have to speak the same language -- the music and expression bonds people more deeply than words.

So that's what I want to do.

Any ideas or advice for me?