Rasputin (song)

After capturing the Thirteenth Doctor, the, who had been posing as the Russian mystic Grigori Rasputin, taunted his captive by dancing to an upbeat disco tune. It included the chorus "Ra-Ra-Rasputin Lover of the Russian queen / There was a cat that really was gone / Ra-Ra-Rasputin Russia's greatest love machine / It was a shame how he carried on". (TV: The Power of the Doctor)

The band Boney M were notable for having written a song about Grigori Rasputin by the 1970s. (PROSE: The Wages of Sin)

Behind the scenes
The song that the dances to in the episode The Power of the Doctor is "Rasputin" by Boney M. However, the song is never referred to by name in the episode.