Stalin was originally mentioned in the lyrics; however, after his death in 1953 and the process of Destalinization, the lyrics referring to Stalin were unacceptable. From that time until 1977, the anthem was played without lyrics. Revised lyrics without the references to Stalin and World War II were approved in 1977. After the collapse of the Soviet Union in 1991, Russia adopted a new national anthem called Patriotic Song without any lyrics. In 2000, the Soviet national anthem (tune) was restored with Mikhalkov writing new lyrics.