A fan lies passed out on the first day of the Wacken Open Air heavy metal music fest on August 4, 2011 in Wacken, Germany. Approximately 75,000 heavy metal fans from all over the world have descended on the north German village of 1,800 residents for the annual three-day fest. (Photo by Sean Gallup/Getty Images)

Competitors in the Big Air challenge at the Proryv-2016 festival of extreme sports in Moscow, Russia on March 27, 2016. (Photo by Xinhua/Rex Features/Shutterstock)

Taiwanese and Chinese nationals suspected of telecom fraud are surrounded by China police SWAT team and Cambodia police as they were deported to China at the International Airport of Phnom Penh, June 24, 2016. Scores of Chinese police officers swarmed the tarmac at Phnom Penh International Airport on Friday as 39 suspects arrested for their involvement in an alleged telecom scam were herded onto a chartered plane bound for China – including 25 Taiwanese nationals, whose government unsuccessfully attempted to have them repatriated. (Photo by Samrang Pring/Reuters)

Sorana Cirstea of Romania hits the ball against Jie Zheng if China during the Sony Ericsson Open at Crandon Park Tennis Center on March 22, 2011 in Key Biscayne, Florida.

Chinese artists perform on stage during the opening ceremony of the International Horticultural Exposition 2011 at the Exposition Park on April 28, 2011 in Xi'an, Shaanxi Province of China. The World Horticultural Exposition 2011 will be held in Xi'an from April 28 to October 22. (Photo by ChinaFotoPress/Getty Images)

Three secondary schoolboys smoking an illicit cigarette in Hyde Park, London. (Photo by Evening Standard/Getty Images). May 1972

A lesser or red panda stands on its hind legs at Chiba Zoological Park on May 20, 2005 in Chiba, Japan. The panda can maintain the position for over 10-20 seconds at a time. (Photo by Koichi Kamoshida/Getty Images)