A Sumatran Tiger tears apart a wrapped Christmas present at Taronga Zoo on December 21, 2011 in Sydney, Australia. Animals received Christmas themed enrichment foods as part of the Zoo's regular program to encourage the animals to forage for food and help improve hunting abilities. (Photo by Brendon Thorne/Getty Images)

Druids, pagans and revellers cheer as the sun rises at Stonehenge on December 22, 2011 in Wiltshire, England. The unseasonable warm weather encouraged a larger than normal crowd to gather at the famous historic stone circle to celebrate the sunrise closest to the Winter Solstice, the shortest day of the year. (Photo by Matt Cardy/Getty Images)

Workers attach 288 new Waterford Crystal Triangles on the 2012 Times Square New Year's Eve Ball at One Times Square on December 27, 2011 in New York City. (Photo by Jason Kempin/Getty Images)

A man in traditional costume tunes his guitar before performing in a traditional Verdiales Flamenco contest on December 28, 2011 in Malaga, Spain. Verdiales is a style of Flamenco thought to originate near the Andalucian port of Malaga, and is performed by groups of musicians known as “Pandas” during the contest held in the outskirts of the city. (Photo by David Ramos/Getty Images)

People walk past the 23-foot “Unitled (LAMP/BEAR)” outdoor sculpture of a teddy bear by artist Urs Fischer April 8, 2011 in New York City. The 35,000 pound sculpture of a yellow teddy bear with a working lamp will be on display for five months in front of the Seagram Building in Manhattan. The sculpture is expected to sell for more than $10 million at Christie’s Post-War & Contemporary Evening Sale on May 11. (Photo by Mario Tama/Getty Images)

The sun catches on the panels of a 1928 Rolls Royce Phantom at Northington Grange, the summer home of the Grange Park Opera, on April 16, 2011 near Winchester, England. The English Heritage Grade 1 listed Greek Revival style property was the setting for the inter-war Rolls Royce20-Ghost Club members which was founded in 1949 by a group of owners of vintage Rolls Royce cars. (Photo by Matt Cardy/Getty Images)

Supermodel Iman (center) introduces her husband David Bowie (L) to Rihanna (R) at the DKMS' 5th Annual Gala: Linked Against Leukemia honoring Rihanna & Michael Clinton hosted by Katharina Harf at Cipriani Wall Street on April 28, 2011 in New York City. (Photo by Andrew H. Walker/Getty Images for DKMS)

The Intel logo is projected on the face of Intel Executive Vice President Dadi Perlmutter as he speaks during a news conference about the 3-D Tri-Gate transistors called “Ivy Bridge” on May 4, 2011 in San Francisco, California. Intel announced a technical breakthrough in the microprocessors with the world's first Tri-Gate transistors, that will increase speed and consume less energy. (Photo by Justin Sullivan/Getty Images)