A group of anonymous composers wrote the song "Glory to Hong Kong" (), which became a theme of the protest and was regarded as the city's unofficial national anthem by protestors. This significance of this 'anthem' is to unify HongKongers and to boost public morale in spite of months of protests going on. The lyrics of the anthem hinted and amplified the events that happened during the few months, such as mass demonstrations and police brutality. The marching style and nature of the song and the rich orchestral background music emphasise the determinations of HongKongers to achieve democracy and wanting the government to respond to the 5 demands. Composed by Thomas dgx, the song has since been translated into several languages. Its lyrics, include the phrase "Liberate Hong Kong, the revolution of our time", were mainly written by users of LIHKG. The song's music video includes demonstration scenes and was uploaded to YouTube on 31 August 2019. Several covers, including a Cantonese opera rendition, were released. A version featuring a 150-person orchestra became YouTube's most viewed music video in 2019 in Hong Kong. On 10 September 2019, supporters sang the song at a football match for the first time during a FIFA World Cup qualification match against Iran. On the same night, the song was publicly sung at more than a dozen shopping malls across Hong Kong.
