Teachers don't typically encourage students to bring iPods to school, but when a girl in Ken Giles's class brought him "One Tribe," a song by the Black Eyed Peas, he was thrilled. Giles, a music teacher in Washington, D.C., uses protest music to illustrate the connections among culture, art, history and social movements and to help his students understand how music can effect social change. Protest songs are part of our cultural consciousness--and a powerful tool in the classroom. Just as music has brought together members of different socioeconomic groups, races and religious convictions into cooperative social movements, protest songs can serve as a versatile teaching resource, culturally relevant to students of diverse backgrounds.