Aluminium ingots are stored at a foundry shop of the Rusal Khakassia aluminium smelter outside the town of Sayanogorsk, Russia, September 3, 2015. Russia's Rusal has decided to delay a decision on its possible first dividend since listing five years ago though its second-quarter core profit more than doubled thanks to cost cuts and a weaker rouble. (Photo by Ilya Naymushin/Reuters)

Hollywood actress Malin Akerman helps King Digital Entertainment set the Guinness World Record for the World's Largest Hammock to celebrate the launch of its new game Paradise Bay on Wednesday, September 2, 2015, in Jersey City, N.J. (Photo by Charles Sykes/Invision for King World Entertainment/AP Images)

Eva Longoria Farmer Visits "The Tonight Show Starring Jimmy Fallon" at Rockefeller Center on November 24, 2015 in New York City. (Photo by Theo Wargo/NBC/Getty Images for "The Tonight Show Starring Jimmy Fallon")

A flock of starlings is seen as they perform their traditional dance fly before landing to sleep during the sunset near the southern Arab Israeli city of Rahat, in the northern Israeli Negev desert, on February 2, 2015. (Photo by Menahem Kahana/AFP Photo)

(L-R) Leigh-Anne Pinnock, Jesy Nelson, Perrie Edwards and Jade Thirlwall of Little Mix attend the KISS FM Haunted House Party at SSE Arena on October 29, 2015 in London, England. (Photo by Dave J. Hogan/Dave J. Hogan/Getty Images)

Public Space series, 2015. This series by Morteza Niknahad and Behnam Zakeri tends toward cinema, taking an almost cartoonish view of modern life in Iran. This work was inspired by the social life of dolphins. (Photo by Morteza Niknahad and Behnam Zakeri/The Guardian)

A face of a devotee covered with her cloth is pictured as she offers prayers to the rising sun during the "Chhat" festival in Kathmandu, Nepal November 18, 2015. Hindus in Nepal celebrate "Chhat", a four-day festival that honours the sun god by praying at sunrise and sunset and seeking blessings for ones family by giving offerings. (Photo by Navesh Chitrakar/Reuters)

In this November 18, 2015 photo, 9-year-old Mahiro Takano, center, three-time Japan karate champion in her age group practices in Nagaoka, Niigata Prefecture, north of Tokyo. Mahiro stars in singer Sia's latest music video "Alive", the just-released single from the singer's upcoming album. (Photo by Eugene Hoshiko/AP Photo)