RACHEL MARTIN, HOST:
We're going to hear now how a prominent libertarian found his political voice.
(SOUNDBITE OF MUSIC)
MARTIN: Matt Kibbe was just 13 when he fell under the spell of a certain rock band.
MATT KIBBE: Well, I was listening to a lot of Led Zeppelin, but it was the band Rush really got me starting to read and pay attention to ideas.
MARTIN: On the Rush album, "2112," the band sings of a futuristic society, in which thought and expression are controlled by a top-down autocracy.