Exactly.
http://www.live8live.com/
Bob Geldof, at the urge of someone else (I'm blanking right now on whom), organized "Live8", a series of concerts time to coincide with this week's G8 Summit in Scotland. There were 10 concerts around the world (Phily, London, Johanesberg, Barrie, Moscow, Paris, Rome, Berlin, Eden Project, and Tokyo). Tickets were given out for free (some sort of lottery system). The motto has been, "in 2005 it is your voice we are after, not your money."
The goal has been to put pressure on the G8 countries to increase aid to Africa and to agree to debt relief for African nations.
Wonderful ideals, not sure if it reached enough people to make that voice loud enough.