It's Christmas in California! Ashlee Simpson celebrated a holiday-themed 30th birthday bash with friends and family on Friday, Oct. 3.

It didn't take long for Taylor Swift to pop on Instagram to share her 30th birthday party album from her big night. See all the shots she shared.

It was a Swiftmas party. She's in the process of trying to trademark "Swiftmas," and what better way than throwing the ultimate Christmas-themed birthday party? Swift went all out with the holiday ...

On December 18, singer Billie Eilish turned 21 years old and threw a star-studded Christmas and holiday-themed birthday bash in Los Angeles to celebrate.

In her post, Bailey shared a few pictures from Halo's Cocomelon -themed birthday party, which included a bounce house, ball pit and an adorable cake featuring the popular YouTube channel's logo.

Erina and Ben Napier celebrated daughter Mae's third birthday with a Christmas-themed party, complete with a visit from Santa. The HGTV co-hosts share daughters Helen, 6, and Mae, 3.

Inside Billie Eilish’s Celebrity-Packed 21st Birthday Party Kendall Jenner, Hailey and Justin Bieber, Doja Cat, Lil Nas X, and more showed up for the Christmas-themed bash.

Brittany Daniel 's daughter Hope is celebrating one buggin' birthday! The Sweet Valley High alum, 47, celebrated her daughter Hope’s 2nd birthday with an insect-themed party, which she ...

9 ways to make a child’s birthday special if it falls at Christmas Christmas birthdays can get overlooked. Lisa Salmon gets tips from parenting and party experts.

Hilton shared, revealing the party's theme. "Happy 1st Birthday London!!!" Hilton and husband Carter Reum can be seen posing with London in their arms in front of the pink birthday sign.

Shilpa took to her Instagram Stories and shared a bunch of photos from Adira’s fun-filled Christmas-themed birthday bash.

Happy birthday and a marry Christmas! Billie Eilish celebrated her 21st birthday over the weekend with big, Christmas-themed festivities.