1. The Jonas Brothers reunited for the holidays.
2. Ariana Grande had fun with family and filters.
3. Lady Gaga shared an adorable video of her dog...
...and a sweet photo with her dad.
Merry Christmas and Happy Holidays from me and my dad to you!! Natali and Mom are busy in the kitchen. We love you!… https://t.co/kjSSAzG1OP
4. Liam Hemsworth and Miley Cyrus went all out.
5. Kylie Jenner and Tyga also got in the spirit.
6. The Curry family shared a cute family photo.
7. And so did Ciara and Russell Wilson.
8. In baby news, Nick and Vanessa Lachey welcomed baby number three to the family!
9. Chrissy Teigen and John Legend celebrated baby Luna's first Christmas.
And it looked like Chrissy was into Luna's new toy more than she was.
10. Michael and Nicole Phelps also celebrated baby's first Christmas with their son Boomer.
11. As did Behati Prinsloo and Adam Levine with their baby girl Dusty Rose.
Adam showed off some basketball skills, too!
12. And in other firsts, Zendaya celebrated her first Christmas in her own home.
13. Zac Efron enjoyed some Christmas cookies.
14. The Rock sent several holiday greetings including this Baywatch-themed one...
15. ...and this one possibly teasing an upcoming project with Henry Cavill.
16. Henry also shared a cute vid of his dog Kal receiving a Christmas present.
17. Kristen Bell got some knitting done.
18. Lea Michele spent the day hiking.
This is how we Christmas! 😀🎄💪🏻
19. Lucy Hale's family wore matching getups.
20. And Mindy Kaling listened to Norah Jones.
Listenin to Norah Jones and having a real good Christmas
21. Kris Jenner showed off one of her Christmas gifts.
So surprised I seriously have no words for this spectacular gift from my kids......thank you family ❤❤🎅🏼🎅🏼🎄🎄🙏🙏… https://t.co/BUoJoNdT4D
22. Kate Hudson showed off her vocals.
23. As did Lana del Rey!
24. Gabrielle Union shared this cute video from the Wade family.
25. Britney Spears' family hunted and zip-lined.
26. And Luda wished us all a merry Ludacrismas.
