Today is a holiday in Russia—lucky them, I think they have off from work—called Russia Day (День России). Russia Day marks Russia’s declaration of sovereignty in 1990. It has been a national holiday since 1992.
In honor of Russia Day, here’s a video of a bunch of random famous singers singing the Russian National Anthem at a concert for Russia Day in 2013. Sorry if there’s an annoying ad in the beginning—that’s not something I can control, unfortunately.