joe strummer lived it the whole time.d they're a big part of the story. >> we have another guitar back here. this is representative of what? >> she wanted to be a great rock and roll singer. she wanted to take gender out of it. she did it has hard as anybody, still does. she's not being a diva. she's being a leader and really calling out for women's rights. they're leading and others are following. >> talk about like over the history. this shows, just trace a little bit the way in which rock and roll, basically rebel music. just trace over the time from the beginning of rock and roll to now the main concerns politically speaking of rock and roll. >> sure. the 1950s, early '60s, it's civil rights. it's shaken their world. huge, huge movement. when the march on washington happened, before him on the day was bob dylan, joan biaz. that's front and center with it. you talk about ecology or anti-war movement. rock and roll was a voice. musicians and artists are speaking for a will the of other people. they're pushing the envelo