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JOE AND JESSICA SIMPSON
"Got all dressed up for Christmas!!," the singer's father captioned this festive photo on Instagram. (Yes, Jess is wearing a candy cane onesie!)
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The Pretty Little Liars star posed in front of her Christmas tree in this cheeky holiday onesie.
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A makeup-free Lucy waited for Santa on Christmas Eve in these classic green-and-red elf pajamas.
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Ashley's still in the holiday spirit the day after Christmas, cozying up in her snowflake patterned holiday onesie with a warm, fuzzy hood.
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Oprah celebrated the morning after Christmas relaxing in her red-and-white striped onesie. "Happy morning after 🎄. Hot out of the oven jalapeño cheese bagels. 10 points WW .. worth it! #ilovebread," the star said on Instagram. Same O, same.
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The "All I Want For Christmas" singer says she was "getting in the Christmas spirit" on Instagram, posing in front of her tree in a revealing pajama look featuring a sparkly red bra, a draped plaid flannel and fuzzy booties.
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"The only time of year I wear matching pajamas," the star captioned this mirror selfie of her cute plaid set.
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KRISTEN BELL AND DAX SHEPARD
This married couple of three years knows a thing or two about coordinating outfits. Here they wear holiday-patterened hoodies to a Christmas party and prove they're serious #couplegoals.
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KEVIN HART AND FAMILY
The Hart family went matchy-matchy in their Santa hats and heart T-shirts, that even the dogs sported!
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GIULIANA RANCIC AND DUKE
Rancic and her son, Duke, 4, just couldn't wait until Christmas morning to throw on their reindeer onsies.
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SEAN LOWE AND CATHERINE GIUDICI
The Lowe family celebrates their first Christmas with baby son Sam in snowman onesies, a tradition they plan to keep every year, Giudici said on her Instagram.