Convention goers dressed as bright colored Wookiees, a fictional species from the US epic space opera franchise Star Wars, prepare for a group photo outside the Comic Con 2016 in San Diego, California, USA, 22 July 2016. The San Diego Comic Con 2016 runs from 21 until 24 July. (Photo by David Maung/EPA)

An undated handout image provided by UNICEF Germany on 20 December 2016 shows the “UNICEF Photo of the Year 2016” by Iranian freelance photographer Arez Ghaderi. Ghaderi won the first prize for his picture of a girl in a makeshift tent city in the Razavi Khorasan province, Iran, it was announced at a ceremony in Berlin, Germany on 20 December 2016. (Photo by Ariz Ghaderi/EPA/UNICEF Deutschland)

In this photo taken on Sunday, February 15, 2015 a girl runs away from a “Mamuxarro” during the carnival, in the small town of Unanu, northern Spain. In the northern Spanish ancient village of Unamu, people dress up as “Mamuxarro”, folkloric figures in white with a red sash and a metal mask to cover their faces as they pursue townsfolk with sticks. According to custom, their “victims” (usually young women) must kneel and kiss the mamuxarro’s knee after he makes the sign of the cross on their forehead. (Photo by Alvaro Barrientos/AP Photo)

Men carry a dog, wearing a costume and seated on a stool, as a form of respect as they believe that dogs found water for their ancestors, during a local festival for the Miao ethnic minority in Jianhe county, Guizhou Province, China, August 14, 2016. (Photo by Reuters/China Daily)

Jason Derulo (C) performs “Get Ugly” at the People's Choice Awards 2016 in Los Angeles, California January 6, 2016. (Photo by Mario Anzuoni/Reuters)

Models present creations by fashion design students of the Taiwanese Shih Chien university at the Berlin Fashion Week Autumn/Winter 2016 in Berlin, Germany, January 22, 2016. (Photo by Fabrizio Bensch/Reuters)

Antonina Petkovic walks the runway during the Jean Paul Gaultier Spring Summer 2016 show as part of Paris Fashion Week on January 27, 2016 in Paris, France. (Photo by Pascal Le Segretain/Getty Images)

Models walk in the finale of the Jeremy Scott Fall 2016 collection during Fashion Week in New York, Monday, February 15, 2016. (Photo by Richard Drew/AP Photo)