With gutsy musicians like Neil Young and Green Day using the stage to protest the war in Iraq and the current state of American politics, Audioslave guitarist Tom Morello has gone beyond the Bush-bashing call of duty. For one, there's his work with the Axis of Justice, the non-profit he co-founded with System of a Down singer Serj Tankian with the mission of uniting music and grassroots political organizations in the fight for social justice.

When the social injustice Bat-light...

He really pushed his boundaries on the "groove-oriented" song "Broken...

Audioslave's "Doesn't Remind Me" was a runner-up to System of a Down's "B.Y.O.B." in the Best Hard Rock Performance category, but Morello enjoyed the Grammy festivities anyway, citing Paul McCartney's...