RAGE!!

Zack de la Rocha - an ambassador for Mexican American relevancy in the United States. He is an activist, poet, singer, lyricist, and vocalist. He is the lead singer for the band, Rage Against the Machine. Powerful in his words, he sings with purpose. Here is an article about the band's last gig at the 2011 L.A. Rising Music Festival in Los Angeles.
http://www.rollingstone.com/music/news/rage-against-the-machine-keep-fighting-at-l-a-rising-festival-20110801