A camel is seen as he is being brought for the foot surgery at the Dubai Camel Hospital in Dubai, UAE, December 11, 2017. (Photo by Satish Kumar/Reuters)

In this picture taken on December 13, 2017, a woman commutes on a street on a cold day in Baoding. As temperatures dipped below freezing in a northern Chinese village, a group of parka-clad women tried to stay warm as they played mahjong around a small gas stove in a grocery store. (Photo by Fred Dufour/AFP Photo)

British fashion model Twiggy plays around on the bumper cars at the Bertram Mills Circus in London, England on January 10, 1967. (Photo by AP Photo)

Cuban-American singer Camila Cabello arrives at iHeartRadio's Z100 Jingle Ball 2019 at Madison Square Garden on December 13, 2019 in New York City. (Photo by Michael Loccisano/Getty Images)

Rihanna attends the Balmain show as part of the Paris Fashion Week Womenswear Fall/Winter 2014-2015 on February 27, 2014 in Paris, France. (Photo by Dennis Leupold/The Guardian)

Detail of the shoes of Detroit Pistons guard Langston Galloway (9) in the first half against the Philadelphia 76ers at Little Caesars Arena in Detroit, Michigan, USA on December 23, 2019. (Photo by Rick Osentoski/USA TODAY Sports)

Secondary school graduates play in a fountain as they celebrate the last day of school, traditionally called the “last bell” in central Kiev, Ukraine on May 31, 2019. (Photo by Valentyn Ogirenko/Reuters)

American YouTuber, model and singer/songwriter Erika Costell (R) out and about in Los Angeles, USA on December 31, 2019. (Photo by ROGUT/starmaxinc.com/Rex Features/Shutterstock)