A passenger not wearing pants sits in a subway train during the “No Pants Subway Ride” in Prague, Czech Republic, January 10, 2016. The event is an annual flash mob and occurs in different cities around the world in January, according to its organisers. (Photo by David W. Cerny/Reuters)

A reveller takes part in the battle of “Enfarinats”, a flour fight in celebration of the Els Enfarinats festival on December 28, 2015 in Ibi, Spain. Citizens of Ibi annually celebrate the festival with a battle using flour, eggs and firecrackers. (Photo by Pablo Blazquez Dominguez/Getty Images)

Photographer Andy Hall joins the thousands of fans from west Africa who have gathered for Baaba Maal's annual Blues du Fleuve festival in Senegal. Here: Dancers wait to perform on stage. (Photo by Andy Hall/The Observer)

This screengrab from Thai TV Pool video taken on May 1, 2019 shows a ceremony in which Thailand's King Maha Vajiralongkorn “legally married” Suthida Vajiralongkorn na Ayudhya in Bangkok. Thailand announced on May 1, 2019 that King Maha Vajiralongkorn's long-time consort had become his fourth wife, bestowed with the title Queen Suthida – a surprise move just days before his coronation. (Photo by Bureau of the Royal Household via Reuters)

“Former Harry Potter star Emma Watson has shed her squeak-clean image by parading the streets in a bra and hot pants for her role in Sofia Coppola's latest movie. The actress has signed up for a leading role in The Bling Ring, playing one of the real-life teens who stole from the homes of stars including Paris Hilton, Lindsay Lohan and Orlando Bloom in 2008 and 2009. A series of images from the Los Angeles film set are set to shock the Brit's younger fans as she has been photographed strutting in tiny shorts, a bra-style top, leather jacket and towering high heels”. (Photo by PR Photos/Gaz Shirley/KVS/PacificCoastNews.com)

Larissa Neto, a muse of the Unidos da Tijuca Samba School, poses as she wears a carnival dress in Sao Goncalo near Rio de Janeiro, Brazil, February 3, 2016. Rio de Janeiro's carnival parades are known the world over for the glitz and glamour, high-tech allegorical floats and shimmering bodies, which battle it out each year for the championship title. Each school is fronted by the Queen of the Drums, who dances alongside the raging percussion, and her court of sparkling, sculpted dancers known as “muses”. (Photo by Ricardo Moraes/Reuters)

Traditional trumpeters perform during the durbar festival on the second day of Eid-al-Fitr celebrations in Nigeria's northern city of Kano, July 7, 2016. The Durbar festival begins with prayers, followed by a parade of the Emir and his entourage on horses, accompanied by music players, and ending at the Emir's palace. The Durbar festival had been in hausaland for more than 500 years. It was introduced by sarki muhammadu rumfa of kano in the late 14th century, as a way of demonstrating military power and skills before going to war. The festival is also an opportunity for local leaders to pay homage to emir throughout the jahi cheering. (Photo by Akintunde Akinleye/Reuters)

A man wearing a beard imprinted facemask as a preventive measure against the COVID-19 coronavirus walks along a street in New Delhi on June 19, 2020. India has recorded more than 380,000 cases of COVID-19, the fourth-highest in the world, with over 12,500 deaths, health ministry data show. (Photo by Jewel Samad/AFP Photo)