A model walks the runway at the Popluxe Fall 2012 fashion show during Mercedes-Benz Fashion Week at The Studio at Lincoln Center on February 10, 2012 in New York City. (Photo by Frazer Harrison/Getty Images)

Saira Liaqat, 22, a victim of acid violence who was burned 4 years ago, poses in Islamabad, June 11, 2007. Saira is from Lahore and was attacked with acid thrown on her over an argument relating to an arranged marriage. (Photo by Paula Bronstein/Getty Images)

A Chinese couple take pictures in an interactive installation art work named “You and Me” on Valentine's Day at 798 Art Zone on February 14, 2012 in Beijing, China. (Photo by Feng Li/Getty Images)

Clutching a large paper bag and shading his eyes as he peers ahead, comic actor of the silent screen, Buster Keaton (1885–1966) arriving at Paris airport. (Photo by Keystone/Getty Images). 1st August 1947

Guillermo Rodriguez and Sports Illustrated Swimsuit Issue cover model Kate Upton arrive at Club SI Swimsuit hosted by the Pure Nightclub at Caesars Palace at the Pure Nightclub at Caesars Palace on February 16, 2012 in Las Vegas, Nevada. (Photo by Michael Loccisano/Getty Images for Sports Illustrated)

The walls of Sydney's Town Hall Station are bedecked to resemble a Woolworths' supermarket shelf in Australia's first virtual supermarket, at Town Hall Station on February 19, 2012 in Sydney, Australia. (Photo by Marianna Massey/Getty Images for Woolworths)

A young man shows off his new Sony PlayStation Vita portable gaming device that he just bought at the Sony Store during the official German launch of the new Vita on February 21, 2012 in Berlin, Germany. Several hundred video gaming enthusiasts waited hours in line to be among the first to buy the new device. (Photo by Sean Gallup/Getty Images)

Lisa Snowdon (C) takes part in the launch of the new Veet Easywax campaign in a bid to find “Britain's Greatest Legs” on February 23, 2012 in London, England. (Photo by Tim Whitby/Getty Images)