A student protester throws a stone against a riot police vehicle during a demonstration to demand changes in the education system in Santiago, Chile, April 21, 2016. (Photo by Ivan Alvarado/Reuters)

Actress Shae Mitchell arrives at REVOLVE Desert House on April 16, 2016 in Thermal, California. (Photo by Ari Perilstein/Getty Images for A-OK Collective, LLC.)

Kurdish gunmen hold their rifles in front of the burning house of a Shi'ite militiaman during clashes in Tuz Khurmato, Iraq, April 24, 2016. (Photo by Goran Tomasevic/Reuters)

Models wear creations from the Ronaldo Fraga collection during the Sao Paulo Fashion Week in Sao Paulo, Brazil, Monday, April 25, 2016. (Photo by Andre Penner/AP Photo)

Beyonce performs during the Formation World Tour at Raymond James Stadium on Friday, April 29, 2016, in Tampa, Florida. (Photo by Frank Micelotta/Invision for Parkwood Entertainment/AP Images)

TV and radio host Lizzie Cundy, 46, attends the World Premiere of “The Hatton Garden Job” at The Curzon Soho on April 11, 2017 in London, England. (Photo by Fame Flynet)

Soldiers pose for a photo during the flower exhibition marking the 105th birth anniversary of the country's founding father, Kim Il Sung in Pyongyang, North Korea April 16, 2017. (Photo by Damir Sagolj/Reuters)

Women take a photo in the late afternoon sun during the Coachella Valley Music and Arts Festival on April 17, 2017 in Indio, California. (Photo by Carlo Allegri/Reuters)