Released in 1997 as a single from Blur's self-titled fifth album, Song 2 was a deliberate shift toward a louder, more American-influenced rock sound for the British band. Its wordless woo-hoo hook and raw guitar riff helped it become their biggest international hit, reaching audiences far beyond Britpop fans. Over time it became a staple at sports stadiums, in films and in advertising, where its instant burst of energy signals excitement. That wide exposure turned a short album track into a lasting cultural shorthand for hype.