This is just a tweet from US President-elect Joe Biden.

I won't be president until January 20th, but my message today to everyone is this: wear a mask. Thank you 

조 바이든 미국 대통령 당선인 1월 20일 까지는 대통령 당선인이지만, 국민들께 호소및 당부드립니다. COVID-19 암흑을 벗어나기 위해 언제 어디서나 꼭 마스크를 착용 호소했습니다.

1.Photo: U.S. President-elect Joe Biden asked all citizens to wear masks.
2.Photo: Former US President Barack Obama and President-elect Joe Biden wore black masks, so we appeal to all citizens to wear masks.

News reports of US President-elect Joe Biden and Vice President-elect Kamala Harris are always attended by Korean fan clubs.

Reported by 

Alexander U. : Photo Journalist 

Hakmin Kim : Journalist 

Hong-e Kim : Journalist/PD