Ke$ha performs live on stage during the second day of the Wireless Festival at Hyde Park on July 2, 2011 in London, England. (Photo by Jim Dyson/Getty Images)

Sydney Truba, 11, of Melvindale, Michigan lies in a giant lake of mud during Wayne County's 2011 Mud Day event at Nankin Mills Park July 12, 2011 in Westland, Michigan. The annual event consists of 20,000 gallons of water mixed with 200 tons of topsoil. (Photo by Bill Pugliano/Getty Images)

A Hindu holy man, or sadhu, smokes marijuana on a chillum (pipe) at the premises of Pashupatinath Temple during the Shivaratri festival in Kathmandu February 27, 2014. Hindu holy men from Nepal and India come to this temple to take part in the Shivaratri festival. Celebrated by Hindu devotees all over the world, Shivaratri is dedicated to Lord Shiva, and holy men mark the occasion by praying, smoking marijuana or smearing their bodies with ashes. (Photo by Navesh Chitrakar/Reuters)

Nepalese women performs ritual as they take a holy bath in the Bagmati River, during the Rishi Panchami festival, in Kathmandu, Nepal September 18, 2015. Rishi Panchami is observed on the last day of Teej when women worship Sapta Rishi (Seven Saints) to ask for forgiveness for sins committed during their menstrual periods throughout the year. The Hindu religion considers menstruation as a representation of impurity and women are prohibited from taking part in religious practices during their monthly menstruations. (Photo by Navesh Chitrakar/Reuters)

A visitor takes photos while attending the Dandenong Festival of Lights in the suburb of Dandenong in Melbourne, Australia, September 23, 2015. The month-long festival, set up by the Chinese Cultural Works Light Spectacular, celebrates Chinese culture through a display of hundreds of beautiful and unique silk light displays, according to the event's website. (Photo by Darrin Zammit Lupi/Reuters)

A devotee of the Chinese Samkong Shrine walks with flowers pierced through his cheeks during a procession celebrating the annual vegetarian festival in Phuket, Thailand, October 16, 2015. The festival, featuring face-piercing, spirit mediums and strict vegetarianism celebrates the local Chinese community's belief that abstinence from meat and various stimulants during the ninth lunar month of the Chinese calendar will help them obtain good health and peace of mind. (Photo by Jorge Silva/Reuters)

With their wings at full length, these beautiful golden eagles soar through the skies in a glorious training session to hunt their prey. Others sit on the arms of their owners and trainers. Batzaya Choijiljav, 41, from Mongolia has taken these magnificent pictures at the annual traditional Kazakhs festival, October 2015. (Photo by Batzaya Choijiljav/Caters News)

A combination of four pictures shows participants dressed in superhero and heroic fantasy costumes posing during the second edition of the Hero Festival in Marseille, France, November 7, 2015. The festival is dedicated to American superhero comics, Japanese mangas, heroic fantasy characters and video games universes. (Photo by Jean-Paul Pelissier/Reuters)