List of Famous people born on December 21st

Kino was a Soviet rock band formed in Leningrad in 1982, considered to be one of, if not the, greatest rock band in the history of Russian music. The band was co-founded and headed by Viktor Tsoi, who wrote the music and lyrics for almost all of the band's songs. Over the course of eight years, Kino released over 90 songs spanning over seven studio albums, as well as releasing a few compilations and live albums. The band's music was also widely circulated in the form of bootleg recordings through the underground magnitizdat distribution scene. Viktor Tsoi died in a car accident in 1990. Shortly after his passing, the band broke up after releasing their final album, consisting of songs that Tsoi and the group were working on in the months before his death.

Mauro Bettin is an Italian former professional racing cyclist. He rode in two editions of the Tour de France, three editions of the Giro d'Italia and one edition of the Vuelta a España.

Franco Micalizzi is an Italian composer and conductor, best known for his scores in Poliziotteschi films.

David McHugh is a former Irish rugby union referee. McHugh refereed matches at the 1995, 1999 and 2003 Rugby World Cups. In 1996 McHugh refereed the inaugural Heineken Cup final. He would also referee the 2001 final, making him the first referee to take charge of two European Rugby Champions Cup finals. He also refereed in the Celtic League, the Six Nations Championship and the Tri Nations. In 2002, while refereeing a Tri Nations match between South Africa and New Zealand, McHugh was assaulted by a South African fan. After retiring as a referee in 2004, McHugh worked as a referee performance officer and then manager for the Irish Rugby Football Union.

Claude Vincendeau is a French former professional racing cyclist. He rode in four editions of the Tour de France, two editions of the Giro d'Italia and one edition of the Vuelta a España.