Karaoke

Karaoke was a form of singing at parties in the 21st century.

The TARDIS had a karaoke bar. The Eleventh Doctor once claimed that, if it were to be disabled, the TARDIS could sustain a paradox, although he later admitted that he was lying. (TV: The Girl Who Waited) The Twelfth Doctor enlisted karaoke among things he didn't like. (TV: Deep Breath)

Clara Oswald sang "Hungry Like the Wolf" karaoke on hen night. Professor Grisenko, who was from 1983 Soviet Union, had no idea what "karaoke" was. (TV: Cold War)