Aggressive form of rock music that coalesced into an international (though predominantly Anglo-American) movement in 1975–80. Originating in the countercultural rock of artists such as the Velvet Underground and Iggy (Pop) and the Stooges, punk rock evolved in New York City in the mid-1970s with artists such as Patti Smith and the Ramones. It soon took root in London—where distinctly “punk” fashions, including spiked hair and ripped clothing, were popularized—with bands such as the Sex Pistols and the Clash, and later in California, with X, Black Flag, and the Dead Kennedys. It is often marked by a fast, aggressive beat, loud guitar with abrupt chord changes, and nihilistic lyrics. Variants include new wave (more pop-oriented and accessible) and hardcore (characterized by brief, harsh songs played at breakneck speed); the latter continued to thrive through the 1990s.
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