12:00 AM PST, December 31, 2014
Katy Perry is one festive pop star! The "Dark Horse" singer donned a delicious gingerbread woman costume for the holidays, Instagramming on Dec. 30, 2014: "#OOTW!!! I hope it's not too late to get best dressed 2k14 ?Thanks to my friends @belovedshirts for making custom gingerbread men & women's onesies for me & all my buddies for Christmas!"
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Katy Perry
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Instagram
Katy Perry is one festive pop star! The "Dark Horse" singer donned a delicious gingerbread woman costume for the holidays, Instagramming on Dec. 30, 2014: "#OOTW!!! I hope it's not too late to get best dressed 2k14 ?Thanks to my friends @belovedshirts for making custom gingerbread men & women's onesies for me & all my buddies for Christmas!"
Catherine Zeta-Jones and Michael Douglas
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Facebook
Michael Douglas and Catherine Zeta-Jones took their kids out on the slopes for a holiday ski trip in the Alps. "Merry Christmas, Nadolig Llawen!" the the Wales-born actress posted on Facebook. "I hope everyone has a joyous holiday and is surrounded by friends, family, and loved ones."
Reese Witherspoon
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Instagram
Reese Witherspoon embraced the #WreathWitherspoon meme originated by The Mindy Project when she posed for this shot on Instagram.
Britney Spears
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Instagram
Britney posed with sons Sean and Jayden and new boyfriend Charlie Ebersole in matching flannel in front of their Christmas tree.
Kendall and Kylie Jenner
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Instagram
The Jenner sisters donned matching dresses for their family Christmas party, where they got some face time with the man in red himself.
Kat Dennings and Josh Groban
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Instagram
Actress Kat Dennings and her boyfriend, singer Josh Groban, posed with Jolly Old St. Nick at the 2 Broke Girls holiday party.
Heidi Klum
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Instagram
Heidi Klum must have shocked Santa in this shot she posted to her Instagram page.
Gwyneth Paltrow
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Twitter
Actress Gwyneth Paltrow celebrated Hanukkah at the White House on Wednesday, where she posed with fans, including activist Jay Ruderman, and Stosh Cotler and Ilyse Hogue who serve as board members for the social justice organization Bend the Arc.
Miley Cyrus
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Instagram
The performer posted a series of photos of herself as a bizarre "turnt up elfie" on her Instagram page.
Brooke Shields
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Instagram
Brooke Shields is giving the gift of herself. The actress posted an Instagram pic on Dec. 15, 2014 of her in a life-size Barbie box. Explaining her big arts-and-craft project, she wrote: "I made this thanks to you #ContainerStore!!"
Oprah Winfrey
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Instagram
The Queen of Talk's dogs got a special gift from Tonight Show host Jimmy Fallon. Sharing the a photo of decorative sweaters on Dec. 15, Oprah Instagrammed: "Look what @jimmyfallon gave me... Christmas sweaters for my doggies. Best gift ever! #FallonTonight."
Bryce Dallas Howard
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Getty Images
Jurassic World actress Bryce Dallas Howard hung out with a giant nutcracker while she hosted Canon Camera's "Let It Snow" Globe spectacular at the Hollywood & Highland outdoor shopping center on Dec. 14.
Sarah Hyland, Jordin Sparks and Santa Claus
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Getty Images
Modern Family star Sarah Hyland and "Right Here, Right Now" singer Jordin Sparks showed some love to Santa Claus while greeting children and ringing in the Christmas season at Delta Airlines' annual Holiday in the Hanger celebration at LAX on Dec. 10.
Nolan Gould
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The Modern Family star lent a hand at the Old Spice HoliSPRAY Toy Donation Exchange event at Hollywood High School on Dec. 10.
Isaiah Mustafa
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The Old Spice spokesman helped spray some fake Christmas trees at Old Spice's HoliSPRAY Toy Donation Exchange in Hollywood on Dec. 10.
Lindsay Lohan and Ali Lohan
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Getty Images
Lindsay Lohan and her sister Ali celebrated the holiday season together at The Sunday Times Style Christmas party. The Mean Girls actress wore a fiery satin jumpsuit that matched her red locks, while the raven-haired Ali wore an all-black, form-fitting dress. The party was held at the clothing store Tramp in New York City on Dec. 9.
Donald Faison
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Insider Images
The Exes star Donald Faison donned a very fluffy Santa Claus costume for the Luvs Leak-Free Holiday event, held at the Children's Museum of Manhattan in New York on Dec. 9.
President Obama
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Getty Images
The president shook hands with Santa Claus at the White House Christmas Tree Lighting event on Dec. 4.
Tom Hanks and Rita Wilson
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Getty Images
The couple co-hosted the 92nd annual National Christmas Tree Lighting at the White House on Dec. 4.
Mariah Carey
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Getty Images
The singer performed at the Rockefeller Center Tree Lighting Ceremony in New York City on Dec. 3.
Yvette Nicole Brown
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Universal Studios Hollywood
The Community and Soul Man star snuggled up to The Grinch at Universal Studios Hollywood's Grinchmas event.
Lucy Hale
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Disney Parks
The Pretty Little Liars star performed "Mistletoe" in Cars Land at Disney California Adventure Park on Nov. 9 for the Disney Parks Frozen Christmas Celebration, airing Dec. 25 on ABC!
Train
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Disney Parks
Patrick Monahan and Jimmy Stafford of the Grammy-winning musical group Train met Donald Duck at Sleeping Beauty Winter Castle at Disneyland on Nov. 9 after their performance of "Shake Up Christmas."
Trey Songz
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Disney Parks
The R&B star serenaded the crowd with "All I Want for Christmas is You" at Sleeping Beauty Winter Castle at Disneyland on Nov. 9.
Trisha Yearwood
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Disney Parks
The singer treated the crowd to a very special rendition of "Have Yourself a Merry Little Christmas" at Sleeping Beauty's Winter Castle at Disneyland on Nov. 9.