A 22-year-old rapper from the Gaza Strip. A young Lebanese singer who quotes Bob Marley's "Redemption Song". They are as representative of the world of Islam today as the conservatives and extremists we see every night on the news. Heavy metal, punk, hip-hop, and reggae are each the music of protest, and in many cases considered immoral in the Muslim world. This music may also turn out to be the soundtrack of a revolution unfolding across that world.