Ally Brooke, from left, Dinah-Jane Hansen, Camila Cabello, Lauren Jauregui and Normani Hamilton of Fifth Harmony, perform “Work From Home” at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 22, 2016, in Las Vegas. (Photo by Chris Pizzello/Invision/AP Photo)

Two young women, having enjoyed a drink at a party, dance together in Tehran, Iran. Although unrelated men and women are forbidden to socialise together many people ignore these strictures in the privacy of their own homes. (Photo by Hossein Fatemi/Reuters/Panos Pictures/Courtesy of World Press Photo Foundation)

Mary Hickey poses with her collection of dolls at her home in Ashbourne, Ireland October 9, 2013. Hickey has been collecting the dolls for over thirty years and now owns over 420 dolls. (Photo by Cathal McNaughton/Reuters)

A model falls over on the runway in a design by Victoria Bliss during the Project NextGen show at Mercedes-Benz Fashion Week Resort 18 Collections at Carriageworks on May 16, 2017 in Sydney, Australia. (Photo by Stefan Gosatti/Getty Images)

A pupil of the Dao ethnic tribe returns home from school along a hillside path at Suoi Thau village in Hoang Su Phi district of Vietnam's northern province of Ha Giang, located at the border with China, September 18, 2015. (Photo by Reuters/Kham)

A model presents a creation by German designer Karl Lagerfeld as part of his Haute Couture Fall Winter 2015/2016 fashion show for French fashion house Chanel at the Grand Palais which is transformed into a casino in Paris, France, July 7, 2015. (Photo by Stephane Mahe/Reuters)

A dog accompanies models who present creations by Indian designer Manish Arora as part of his Fall/Winter 2016/2017 women's ready-to-wear collection in Paris, France, March 3, 2016. (Photo by Gonzalo Fuentes/Reuters)

Veteran racehorse Morestead models the world's first authentic Harris Tweed suit designed for a racing horse, which has been specially commissioned by William Hill to celebrate the opening of this year's Cheltenham Festival on March 15, 2016 in the U.K. (Photo by Joe Pepler/Rex Features/Shutterstock)