There's nothing quite like a woman who knows how to rock. Unfortunately, there aren't enough of them, but that doesn't mean they aren't out there. Since the inception of rock and roll, there have been several iconic trailblazers. As many have learned, it isn't easy following in the footsteps of rock goddesses like Janis Joplin, Chrissie Hynde or Debbie Harry. Success can depend on several things, like the right mix of spunk and sex appeal, the ability to command the attention of an audience, and the talent required to write a song that sticks around long after the band's encore.