LOS ANGELES, Dec 26 — In the world where social media rules, many celebrities have taken to various social media platforms including popular photo-sharing app Instagram to share their holiday festivities.

Many dressed up (or down, depending on your point of view), with Taylor Swift shared a makeup-free shot of her dressed in an elf costume, while her boyfriend Calvin Harris posted a snap of both of them in monochrome outfits against a stark, snowy background.

 

You used to call me on my elf phone.

A photo posted by Taylor Swift (@taylorswift) on

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A photo posted by Calvin Harris (@calvinharris) on

Khloe Kardashian became a guinea pig-cum-model for her niece North West, posting, “I'm Norths [sic] first makeup client ��”

 

I'm Norths first makeup client ��

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A photo posted by Khloé (@khloekardashian) on

Mariah Carey dressed down in very Chrismassy pajamas with her four-year-old twins Monroe and Moroccan, and the diva invited Santa to join their family celebration too.

 

#santaclauseiscomingtotown #dreamscometrue #christmaswishes

A photo posted by Mariah Carey (@mariahcarey) on

Glee actress Lea Michele spent Christmas with boyfriend Matt Paetz and shared a compilation black-and-white shot of them drinking wine on the couch. However, singer Christina Aguilera dressed up in a skin-tight asymmetrical black dress and posed for a funny shot with her fiancé Matt Ruttler.

 

Merry Christmas from us!!!! ��❤️��❤️ (Sheila is really upset to not be in this pic..)

A photo posted by Lea Michele (@msleamichele) on

 

"Apparently" the tree crasher strikes again...haha... Merry Grinchmas! My favorite time of year ��❤️����

A photo posted by Christina Aguilera (@xtina) on

Celebrity chef Gordon Ramsey and his family got into the Christmas spirit as well, with son Jack sharing the following snap:

 

Merry Christmas from all the crazy Ramsay's!��������

A photo posted by @jackramsay1999 on

Fergie and husband Josh Duhamel also shared a family shot featuring their cute two-year-old toddler Axl.

 

Merry Christmas!

A photo posted by Josh Duhamel (@joshduhamel) on

Sarah Michelle Gellar and husband Freddie Prinze Jr toasted Christmas with a black-and-white snap.

 

Merry everything - with ❤️ and gratitude the #Prinze family

A photo posted by Sarah Michelle (@sarahmgellar) on