1. MLK Day: Public Enemy’s “By the Time I Get to Arizona” Music Video (1991).

    Public Enemy sent the Arizona government a strong message 21 years ago when the state canceled the Martin Luther King Jr. holiday. The controversial PE video for the incendiary “By the Time I Get to Arizona,” which addressed this political issue head on, was banned from TV, but the attention it caused helped make history. For more about the vid, check out this Spin article from last year here . (Look for Ice-T in a quick cameo during the diner scene.)

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