'Tis the season to be tweeting!

With Hanukkah starting on Tuesday night and Christmas just days away, stars have been tweeting like crazy about the holidays.

Crystal Harris took to Instagram on Tuesday to share this adorable new holiday card with Hugh Hefner and their two dogs, Lady and Charlie.

In the pic, the Playboy mogul, 88, looks festive in red satin pajamas and a velvet robe as he cozies up to his 28-year-old wife, who is rocking a red skirt, black turtleneck sweater and black tights.

The card reads simply "Season's Greetings," and is signed "Hugh, Crystal, Charlie + Lady," complete with two tiny paw prints.

Too cute!

Demi Lovato also has something to celebrate this week ... a new puppy!  

The 22-year-old singer introduced her new adorable pet to her Instagram followers, writing, "Guys....... SANTA CAME EARLY THIS YEAR......!!!!!!!!!!!!!!!!!!!!!!!"

She posted another snap of the little white dog sitting beneath the Christmas tree. Check it out in the gallery above! Think the pooch is from boyfriend Wilmer Valderrama?

These celebs aren't alone in sharing their holiday cheer.

Click through all the photos to see Taylor Swift trimming her tree, the Kardashian clan spending some quality time together, and Diane Krugar and Joshua Jackson snuggling up for a selfie.

And Happy Holidays to our toofab audience!

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