A clown performs next to the Monument to the Revolution as he takes part in the Latin American Clown Convention in Mexico City, Mexico, October 21, 2015. The convention will be held from October 19 to 22 in Mexico City. (Photo by Henry Romero/Reuters)

Singer Beyonce arrives at TIDAL X: 1020 Amplified by HTC at the Barclays Center on Tuesday, October 20, 2015, in New York. (Photo by Evan Agostini/Invision/AP Photo)

Migrant Haya from Artoz, Syria, shows a picture of her town as she waits to cross the Slovenia-Austria border in Sentilj, Slovenia October 25, 2015. (Photo by Srdjan Zivulovic/Reuters)

A model waits to present a creation by Chinese designer Hu Sheguang for his collection show during China Fashion Week S/S 2016 in Beijing October 26, 2015. (Photo by Jason Lee/Reuters)

Various kinds of pumpkins, out of some 400 on display grown this season, are seen on sale at Franzlbauer farm in Hintersdorf, Austria, October 27, 2015. (Photo by Heinz-Peter Bader/Reuters)

Toyoda Gosei Co Ltd's personal mobility concept airbag car "Flesby" is displayed at the 44th Tokyo Motor Show in Tokyo, Japan, October 28, 2015. (Photo by Yuya Shino/Reuters)

A reveller from Tom Maior Samba School takes part in a carnival at Anhembi Sambadrome in Sao Paulo February 14, 2015. (Photo by Nacho Doce/Reuters)

Lucia Moreno, 28, participates in a Miss Tattoo contest during a tattoo convention in the Andalusian capital of Seville February 14, 2015. (Photo by Marcelo del Pozo/Reuters)