Michael Franti’s musical journey has led his band Spearhead around the globe in a crusade for peace and optimism. Soulrocker is their state of the union address. “Good to Be Alive” stirs the heart with its message of gratitude. “Crazy For You” searches for signs of hope in a violent world. And like any Spearhead production, Franti conducts a body-rocking symphony of folk, hip-hop, reggae, even dance, that brings positive messages to light.