London Calling was released by The Clash in 1979 as the title track of their third album, and it quickly became one of the band's most recognisable songs. Its urgent bass line and apocalyptic lyrics captured late-1970s London, and the track has since become a staple of punk compilations, films and sports broadcasts. On soundboards it is often trimmed to its opening seconds and reused as a high-energy intro, which is why this version is labelled for rugby, where its driving rhythm suits run-outs, montages and highlight reels alongside crowd cheering.