Though rebel rocker Michael Franti's sound may have changed, his message hasn't. courtesy of the artist hide caption

itoggle caption courtesy of the artist

Michael Franti and Spearhead. courtesy of the artist hide caption

itoggle caption courtesy of the artist

Michael Franti and his Spearhead ensemble perform on the "Which" stage at the Bonnaroo Music and Arts Festival in Manchester, Tenn., on Friday, June 11, 2010. Laura Fedele hide caption

itoggle caption Laura Fedele