Yoon is on a six-day state visit to Washington, where he discussed with US President Joe Biden on Wednesday "the end" of any North Korean regime that used nuclear weapons against the allies.
But the two leaders had more cheerful topics on the agenda at the White House state dinner in Yoon's honour later that day, with the South Korean leader – who is known at home to be something of a karaoke buff – sharing his love of American music.
