While many '70s punks got slick in the '80s, The Cramps never went soft—“People Ain't No Good” may open with a children's chorus, but only to distract you from its sucker-punching backbeat. In their later years, they staked their place among rock's top iconoclasts, teaming up with Iggy Pop on the shuffling “Miniskirt Blues” and backing Wanda Jackson on a psyched-up update of her “Funnel of Love.”