Anthem Kaiser". The "Hymn of the Soviet Union", used until its dissolution in 1991, which was given new words and adopted by the Russian Federation in 2000 to replace the unpopular instrumental anthem it had introduced in 1993. "Bro Gozh ma Zadoù", the anthem of Brittany and, "Bro Goth Agan Tasow", the Cornish anthem, are sung to the same tune as that of Wales, "Hen Wlad Fy Nhadau", with similar words. The former Soviet Union, Spain and the United Kingdom, amongst others, are held to be unions of many nations by various definitions. Each of the different nations may have their
Katherine Jenkins she sang at Westminster Cathedral honouring Pope John Paul II's silver jubilee in October 2003 and then supporting Aled Jones on tour. At the Rugby World Cup in 2003 she made her Sydney Opera House debut as a guest of fellow Welshman, Max Boyce and, in August 2004, her first USA appearance, supporting Hayley Westenra at Joe's Pub in New York City. Jenkins was the first person to perform the Home Nations anthem "The Power of Four" and began to appear regularly to sing the Welsh national anthem "Hen Wlad Fy Nhadau" at Welsh international rugby union matches, singing with