The annual Victory Day military parade takes place at Red Square on May 09, 2008 in Moscow, Russia. Russia's most important national holiday honours over 26 million Soviet soldiers killed during World War II. Around 8,000 soldiers in newly designed uniforms paraded in the largest Victory Day display of heavy weaponry since the collapse of the Soviet Union. (Photo by Dima Korotayev/Epsilon/Getty Images)

Models showcase Valentine's Day underwear celebrating the results of a recent survey revealing that men find the lingerie, boxer shorts and vests, the biggest turn on ahead of February 14 Valentine celebrations, at Waterloo on February 2, 2006 in London, England. (Photo by Gareth Cattermole/Getty Images)

A Japanese twenty-year-old woman enjoys a cigarette during the annual Coming-of-Age Day ceremony at Toshimaen Amusement Park on January 11, 2010 in Tokyo, Japan. 1.27 million young people celebrate their passage into adulthood on the day while they become eligible to drink alcohol, smoke and vote at the age of 20. (Photo by Koichi Kamoshida/Getty Images)

Free runners “3run” take advantage of O2's empty Slough HQ on the company's flexible working day on February 8, 2012 in Slough, England. (Photo by Ian Gavan/Getty Images for O2)

A robin perches on a spade handle in a garden on a rainy day in Lixwm, north Wales. Researchers said this week that when European robins are subjected to human-produced noise, their behaviour changes. (Photo by DGDImages/Alamy Live News)

Charli XCX performs on day three of the Pitchfork Music Festival at Union Park on July 21, 2019 in Chicago, Illinois. (Photo by Michael Hickey/Getty Images)

A demonstrator runs between burning tires during a curfew, two days after the nationwide anti-government protests turned violent, in Baghdad, Iraq on October 3, 2019. (Photo by Wissm al-Okili/Reuters)

North Koreans perform during a mass game of “The Land of the People” at the May Day Stadium in Pyongyang, North Korea, Tuesday, June 25, 2019. (Photo by Jon Chol Jin/AP Photo)