The Russian national anthem is set to the melody of the Soviet anthem (used since 1944). As a result, there have been several controversies related to its use. Some such as cellist Mstislav Rostropovich have vowed not to stand during the anthem. Russian cultural figures and government officials were also troubled by Putin's restoration of the Soviet anthem, even with different lyrics. A former adviser to both Yeltsin and Mikhail Gorbachev, the last President of the Soviet Union, stated that, when "Stalin's hymn" was used as the national anthem of the Soviet Union, horrific crimes took place.