Singers Oleg Mityayev, right, and Iosif Kobzon at the former's anniversary concert at Crocus City Hall in Moscow.

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Singers Oleg Mityayev, right, and Iosif Kobzon at the former's anniversary concert at Crocus City Hall, in Moscow.

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Singer Iosif Kobzon during an anniversary concert of singer Oleg Mityayev at Crocus City Hall in Moscow.

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Singer Lev Leshchenko performs at Oleg Mityayev's anniversary concert at Crocus City Hall, in Moscow.

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Singer Alexander Marshal performs at Oleg Mityayev's anniversary concert at Crocus City Hall, in Moscow.

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Singer Valeriya performs during the anniversary concert of singer Oleg Mityayev at Crocus City Hall, Moscow.

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Singer Oleg Mityayev at his anniversary concert at Crocus City Hall, in Moscow.

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Singer Oleg Mityayev during his anniversary concert at Moscow's Crocus City Hall.

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Singer Oleg Mityayev during his anniversary concert at Moscow's Crocus City Hall.

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Singer Oleg Mityayev during his anniversary concert at Moscow's Crocus City Hall.

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Singer Oleg Mityayev during his anniversary concert at Moscow's Crocus City Hall.

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Singer Oleg Mityayev during his anniversary concert at Moscow's Crocus City Hall.

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Singer Oleg Mityayev during his anniversary concert at Moscow's Crocus City Hall.

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