The move underlined Russia’s intensifying estrangement from the international community, including in the realm of culture. Russia began competing in the song contest, the world’s largest, in 1994, and has competed more than 20 times. Its participation has been a cultural touchstone of sorts for the country’s rebound and engagement with the world after President Vladimir V. Putin of Russia came to power in the wake of the political and economic chaos of the 1990s.
In 2008, when Dima Bilan, a Russian pop star, won Eurovision with the song “Believe,” Mr. Putin weighed in promptly with congratulations, thanking him for further burnishing Russia’s image.
It is not the first time that politics have encroached on the contest, which premiered in 1956. In 2005, Ukraine’s entry song was rewritten after being deemed too political because it celebrated the Orange Revolution. When Dana International, an Israeli transgender woman, won in 1998 with her hit song “Diva,” rabbis accused her of flouting the values of the Jewish state.
Several bookmakers have said that Ukraine is by far the presumptive favorite to win the competition this year. Winners are dete rmined based on votes from national juries and viewers at home.
Ukraine’s entry “Stefania” comes from a band that blends traditional Ukrainian folk music with rap and hip-hop. Kalush Orchestra brought the semifinal audience in Turin, Italy, to its feet on Tuesday with a spirited performance that sent them through to Saturday’s Grand Final.