The socialite is a mom to son Phoenix, 20 months, and daughter London, 12 months, whom she shares with husband Carter Reum

Paris Hilton brought her daughter London down the rabbit hole in celebration of her first 𝐛𝐢𝐫𝐭𝐡day.

On Sunday, Nov. 10, the DJ and socialite, 43, took fans inside London’s Alice in Wonderland-themed first 𝐛𝐢𝐫𝐭𝐡day bash, sharing the elaborate decor and friend-filled festivities on her Instagram Stories. Earlier in the day, the proud mom of two showed off her backyard filled with giant teacups and flowers, pink mushrooms and statues of the film’s iconic characters.

“Setting up for a special 𝐛𝐢𝐫𝐭𝐡day today!” Hilton wrote over one clip, adding, “Can anyone guess the theme?” over another.

An hour later, she shared footage of the party’s entranceway, complete with pink and green florals, blue velvet bows and a smiling Cheshire Cat.

“London in Slivington!” Hilton shared, revealing the party’s theme. “Happy 1st Birthday London!!!”

Paris Hilton and family at London’s 𝐛𝐢𝐫𝐭𝐡day party.

Kevin Ostajewski

Hilton and husband Carter Reum can be seen posing with London in their arms in front of the pink 𝐛𝐢𝐫𝐭𝐡day sign. The 𝐛𝐢𝐫𝐭𝐡day girl looked adorable in her all-pink ensemble, while Hilton wore a long skirt printed with an Alice in Wonderland scene and a black headband reminiscent of Alice’s.

She completed the party with a tea party stand and a pack of adorable alpacas roaming the scene. “The most cuddly alpacas,” wrote Real Housewives star Kyle Richards over a video of herself playing with the fluffy animals.

The festive party, planned by Martina Stritesky of White Bow Events, featured live bunnies, Fable and Whisper, the internet sensation Alpacas from Little Horse on the Prarie, Alice in Wonderland high tea, treats, live face painting, pottery painting, and more exciting activities.

Guests at the 𝐛𝐢𝐫𝐭𝐡day party included Jaime King, Desi Perkins, Rachel Zoe, Kelly Osbourne, Amanda Hearst, Sia, Kathy Hilton, Ashley Benson and Brandon Davis, Bijou Phillips, Elisha Cuthbert, Kat Von D, Rebel Wilson, Kyle Richards and Sophia Umansky.

Paris Hilton with Rebel Wilson at London’s 𝐛𝐢𝐫𝐭𝐡day party.

Hilton and Reum are also parents to son Phoenix, 20 months. On Monday, Nov. 4, Hilton shared an adorable Instagram carousel from her first Halloween as a family of four.

Paris Hilton at London’s first 𝐛𝐢𝐫𝐭𝐡day.

Paris Hilton/Instagram

In the sweet clips and pics, Hilton was dressed up as Britney Spears, while her kids rocked a duo costume as Winnie the Pooh and Tigger.

“First Halloween as a Family of 4! My heart is so full! ,” the proud mom captioned her post, adding, “#HappySlivingween.”