"God Save the King", or "God Save the Queen", is an anthem used as the national anthem of the United Kingdom, one of the two national anthems of New Zealand, and the royal anthem of Canada and of Australia. The title of the song varies with the gender of the reigning monarch, and so it now uses "Queen", though "King" has been historically more common. In countries not previously part of the British Empire the tune of "God Save the Queen" has also been used as the basis for different patriotic songs, though still generally connected with royal ceremony.
The authorship of the song is unknown, and beyond its first verse, which is consistent, it has many historic and extant versions: Since its first publication, different verses have been added and taken away and, even today, different publications include various selections of verses in various orders. In general only one, or sometimes two verses are sung, but on rare occasions three. One or two bars may also form a part of the Vice Regal Salute in Commonwealth realms outside the United Kingdom.