Caitlyn Jenner loves her ex-wife Kris Jenner's annual Christmas Eve party.

Caitlyn Jenner

Caitlyn Jenner

The 'I Am Cait' star - who was known as Bruce Jenner before her transition earlier this year - will be joining the rest of her family tonight (24.12.15) at her former spouse's festive bash and can't wait to kick off the holiday season in style.

Answering fan questions on her website, she said: "It's a great time for our family, a great time for all our close friends.

"It just really kicks off our holiday season perfectly and it certainly is a lot of fun."

The 66-year-old former Olympian thinks Kris does a "beautiful" job of organising the "spectacular" party.

She said: "Probably the biggest tradition I have along with the rest of the family, is Kris - for the last 30 years - her Christmas Eve party is over the top spectacular.

"She does such a beautiful job with decorating the house. We've had the same Santa Claus for 25 years."

Caitlyn went on to explain she had photos of daughters Kendall, 20, and Kylie, 18, as babies with the same Santa who still visits their house.

While Caitlyn is looking forward to tonight's party, Kris is said to have scaled down the bash this year and planned a more intimate affair because daughter Kim Kardashian West and husband Kanye West are planning to bring their 19-day-old son Saint along, as well as two-year-old daughter North.

A source told E! News: "They just wanted it more low key, especially because Kanye and Kim are there now with the baby."