It's starting to look very festive in Lucy Mecklenburgh's shop. "Love @lucysboutique_ Christmas decorations," the former TOWIE star wrote.
Reese Witherspoon: "Better late than never ! ❤️"
Sofia Vergara: "Ready for xmass❤️❤️❤️??"
Kourtney Kardashian.
Hilary Swank: "Oh Christmas tree oh Christmas tree #ItsBeginningToLookAlotLikeChristmas ☃"
Kim Kardashian shared a picture of her mum Kris Jenner's foyer, featuring not one but three lavishly decorated trees. "Candy Cane Lane Kris Jenner Style," wrote Kim.
Eagle-eyed fans also noted how Kris may be a Star Wars fan, as they spotted a C-3PO droid at the top of the staircase.
"Exciting ??," Coleen Rooney posted on Instagram.
The pregnant star, who is expecting her third child with Wayne Rooney, also has a tradition of bringing out the Christmas elves to make sure her two boys are behaving for the festive season.
Naturally, the decorations at Buckingham Palace are fit for royalty as the palace's official Instagram account shows.
Holly Willoughby has almost finished her tree as she wrote: "Now all she needs is a star... Merry Christmas everyone xxx."
Rochelle Humes showed off her rose gold-themed decorations, presents and trees on Instagram.
Only Lady Gaga would have the wackiest Christmas decorations in her house.
She followed it up with a close-up photo of her luxurious Christmas decorations.
It looks like Louise Thompson from Made in Chelsea had a helping hand decorating her tree. "Sundays. I watch tv while you decorate the tree," she wrote.
"First friend Christmas dinner at the house," wrote Kylie Jenner, who moved into her own mansion earlier this year.
Abbey Clancy's four-year-old daughter Sophia has her own colourful Christmas tree.
Tamara Ecclestone's little girl Sophia has her own Christmas tree in her playroom. "Feeling very festive in our Christmas pyjamas in front of Fifis tree," she wrote.
Sophia also has a new play toy in the form of a glittering silver reindeer.
Kelly Rowland has been snapped decorating her tree. She also shared a close-up photo of one of her most precious decorations - a snow globe filled with presents.
McBusted's Tom Fletcher has even put up a Christmas tree outside his house. "I held the ladder whilst brave men hung the lights," he admitted.
"Feeling very Christmassy today! Santa visit and tree up!" wrote Una Foden.
Jessica Chastain: "Yes I know the star's a little crooked, but its too tall to fix. And doesnt it give it a bit more character? #smurfproblems #merrychristmas #mychristmastree"