Celebrity Parents Kim Kardashian and Family Celebrate Chicago's 5th Birthday: 'Proud to be Your Mom' "You are the cuddliest sweetest silliest most independent caring girl in the whole world," the SKIMS founder said of her daughter in honor of her birthday milestone on Sunday By Angela Andaloro Angela Andaloro Angela Andaloro is a Society & Culture Staff Writer at PEOPLE. She has been working at PEOPLE since 2022. Her work has previously appeared on BuzzFeed, Entertainment Weekly, and LittleThings. People Editorial Guidelines and Shafiq Najib Shafiq Najib Shafiq Najib is a former writer-reporter at PEOPLE. He left PEOPLE in 2023. People Editorial Guidelines Published on January 15, 2023 02:33PM EST Photo: Kim Kardashian/Instagram Kim Kardashian is celebrating her daughter Chicago West on her very special day! In honor of Chicago's 5th birthday on Sunday, the SKIMS founder honored her little girl on Instagram, sharing a carousel of photos of the mother-daughter duo wearing matching onesies while striking adorable poses from their bed. "My twin. Happy 5th Birthday," Kardashian, 42, wrote in the caption. "I really can't believe you're 5! I'm so so proud to be your mom, it's the best feeling in the entire world." "You are the cuddliest sweetest silliest most independent caring girl in the whole world and I just love you so much!" she added. Watch Kim Kardashian's Daughter Chicago Correct Little Brother Psalm as They Sing Together Joining the celebration, Kris Jenner also posted a sweet tribute to her granddaughter, gushing over her in the Instagram caption. Alongside a series of pictures of Chicago, Jenner, 67, and their other family members throughout the years, the Kardashian-Jenner family matriarch wrote, "Happy birthday to my beautiful granddaughter Chi Chi!!!!" "You are our little doll who lights up every room. You bring the sunshine and the smiles every day and are so kind, sweet, loving, artistic, creative, generous, funny, and give the best hugs," she continued. "You are the most amazing daughter, granddaughter, sister, cousin, niece, and friend and I am so blessed God chose me to be your grandmother!!! I love you more than you will ever know!!!! Lovey xoxo ❤️🙏😍🥰🥳🎂🎁🎈 @kimkardashian." Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories. Along with Chicago, The Kardashians star shares sons Psalm, 3, and Saint, 7, and daughter North, 9, with ex-husband Kanye West. Last month, the mom of four shared some sweet selfies on Instagram featuring Chicago and Saint. The first snap shows Chicago with her arms wrapped around her mom's neck, while both Kardashian and Saint make kissy faces. Saint hides behind Kardashian's shoulder for the cute black-and-white selfie. A second selfie features Chicago and The Kardashians star making grimacing faces at the camera, while the last picture in the Instagram carousel shows the mother-daughter duo with smiles while Saint keeps a straight face. "My bb's," Kardashian captioned her post, on which sister Khloé Kardashian dropped two heart emojis. RELATED VIDEO: Kim Kardashian's Daughter North Shows Off Mini Mall (with a Starbucks!) in Their Backyard: Watch Chicago's also been enjoying some sweet moments on TikTok with big sister North, who transformed the little one into her mini-me in a recent video. "Turning my sister into me," she captioned the video, which begins with Chicago popping into a doorway wearing a Batgirl costume with checkered Vans slide-on shoes. Chicago then disappears back into the doorway and reemerges in a North-inspired outfit: a black graphic tee, paired with black printed shorts and black sunglasses. She jumps around excitedly, showing off her new look.