By demonstrating that the spirit of punk could live in traditional Irish folk music, the Pogues were one of the most radical bands of the mid-'80s. Led by Shane MacGowan, whose slurred, incomprehensible voice often disguised the sheer poetry of his songs, the Pogues were undeniably political -- not only were many of their songs explicitly in favour of working-class liberalism, but the wild, careening sound of their punk-injected folk was implicitly radical. While the band was clearly radical, they also had a wickedly warped sense of humour, which was abundantly clear on their biggest hit, the fractured Christmas carol "Fairy Tale of New York."