Here's a classic radical song as song by David Rovics.
For those who are not in the know, David Rovics is an indie singer/songwriter and grassroots political protestor from the United States. His music is most accurately described as protest-folk and concerns topical subjects such as the 2003 Iraq war, anti-globalization and other social justice issues.
I don't usually like to post slideshows as music videos, but I'm going to make an exception. Yesterday was the 82nd anniversary of Sacco and Vanzetti's execution. For those who don't know, Ferdinando Nicola Sacco and Bartolomeo Vanzetti were two Italian-born laborers and anarchists who were tried, convicted and executed via electrocution on August 23, 1927 in Massachusetts in what is considered one of the most famous miscarriages of justice in American history.