[Barbados, December 22. Image via Splash.]

[Washington, DC; December 22. Image via Getty.]

WASHINGTON - DECEMBER 22: First lady Michelle Obama and her daughters Sasha (C) and Malia read Christmas stories to children at the Children's National Medical Center on December 22, 2009 in Washington, DC. The first lady toured the hospital visiting the Heart and Kidney Unit before greeting 200 patients and hospital staff. (Photo by Mark Wilson/Getty Images)

[New York, December 22. Image via INFDaily.]

[Los Angeles, December 21. Image via WENN.]

[Aspen, December 22. Image via x17.]

[Sofia, December 21. Image via Getty.]

A woman looks through an frosted window on a tram in Sofia on December 21, 2009, as temperatures dropped to minus 11 degrees Celsius as a cold spell continues to grip Europe. AFP PHOTO / DIMITAR DILKOFF (Photo credit should read DIMITAR DILKOFF/AFP/Getty Images)

[LAX, December 21. Image via Bauer-Griffin.]

[San Francisco, December 21. Image via AP.]

In this Dec. 21, 2009 photo, Women carry shopping bags as they walk past a French Connection UK store in San Francisco, Monday, Dec. 21, 2009. Sales this time of year are vital to retailers, of course. But they're not nearly enough to drive the economy. Even if holiday sales exceed expectations, the broader recovery is expected to remain weak _ for the rest of the year and beyond.(AP Photo/Jeff Chiu)

[New York, December 20. Image via INFDaily.]

[Melbourne, December 22. Image via Getty.]

MELBOURNE, AUSTRALIA - DECEMBER 22: A young girl stops to admire Christmas festive lights displayed on a house at The Boulevard Christmas Lights Display on December 22, 2009 in Ivanhoe on the outskirts of Melbourne, Australia. Residents cover their homes and gardens with lights and Christmas decorations every year, attracting upto 20,000 people every night and bringing local traffic to a standstill. (Photo by Scott Barbour/Getty Images)

[Beverly Hills, December 21. Image via Splash.]

[Essen, Germany; December 22. Image via Getty.]

Performers Bartel Meyer and Sybille Behr pose for a photo dressed-up as angels during a dress rehearsal for the piece 'Angels over tariff union' in the western German city of Essen. The performance will take place for the opening of 'Cultural Capital Ruhr.2010' on January 9, 2010. AFP PHOTO DDP / VOLKER HARTMANN GERMANY OUT (Photo credit should read VOLKER HARTMANN/AFP/Getty Images)

[Roissy, France; December 22. Image via x17.]

[Tokyo, December 22. Image via Getty.]

Children enjoy the HD (high-definition) image of a polar bear at Asahiyawa Zoo in Asahikawa, Hokkaido, during a press preview at Sony Building in Tokyo's shopping district of Ginza on December 22,
2009. Visitors will be able to watch the 3D (three dimensions) HD images of amimals at the Japan's northernmost zoo from today until January 17. AFP PHOTO/Toru YAMANAKA (Photo credit should read TORU
YAMANAKA/AFP/Getty Images)

[Hollywood, December 22. Image via Splash.]

[New York, December 21. Image via Getty.]

NEW YORK - DECEMBER 21: Recording artist Mary J. Blige performs at SIRIUS XM Studio on December 21, 2009 in New York, New York. (Photo by Neilson Barnard/Getty Images)

[Rio De Janeiro, Brazil; December 21. Image via Getty.]

A woman bathes at Ipanema beach in Rio de Janeiro, Brazil on December 21, 2009. Rio de Janeiro reached over 35 degrees celsius of temperature on the first day of the summer. AFP PHOTO/VANDERLEI ALMEIDA (Photo credit should read VANDERLEI ALMEIDA/AFP/Getty Images)

[Allahabad, India; December 21. Image via Getty.]

A young girl smiles at the photographer as her unseen mother sorts dried cow dung cakes in the Teliarganj area on the outskirts of Allahabad on December 21, 2009. Cow dung cakes are a major source of domestic fuel for rural households and an environment friendly alternative to firewood in the village areas in many parts of India. In recent times, dung is collected and used as biogas which is used to generate electricity and heat. The gas is a rich source of methane and is used in rural areas of India to provide a renewable, stable and environment friendly source of electricity. AFP PHOTO/Diptendu DUTTA
(Photo credit should read DIPTENDU DUTTA/AFP/Getty Images)

[London, December 22. Image via Bauer-Griffin.]

[Washington, DC; December 20. Image via The Official White House Photostream.]

A White House nurse prepares to administer the H1N1 vaccine to President Barack Obama at the White House on Sunday, Dec. 20, 2009.
(Official White House photo by Pete Souza)