Celebrity Celebrity Family Celebrity Tragedy Sarah Jessica Parker Celebrates Son James' 20th Birthday with Heartfelt Tribute: 'I Love You So' Sarah Jessica Parker shares son James Wilkie with husband Matthew Broderick By Georgia Slater Georgia Slater Georgia Slater is a staff editor on the Parents team at PEOPLE. She has been working at PEOPLE since 2018. Her work has previously appeared in USA Today and Washington Life Magazine. People Editorial Guidelines Published on October 28, 2022 01:05PM EDT Photo: Dimitrios Kambouris/Getty And just like that ... Sarah Jessica Parker and Matthew Broderick's son is 20! On Friday, the Sex and the City star, 57, celebrated son James Wilkie's birthday with a sweet post on Instagram featuring a series of throwback photos of her oldest child. "Oct. 28, 2022 'It was 20 years ago today…' The plates shifted. All the feelings I had ever known, deeper, magnified and in brilliant new colors," she wrote. "Today the kaleidoscope spins with all the memories. In all the glorious shapes, changes and perspectives you have brought to our lives." "Happy birthday my son. I love you so. Xxx, Mama," she concluded the post. Parker's tribute included three photos from when James was a little boy, including a photo of him from a past birthday celebration where he received a candle in a donut. 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. Sarah Jessica Parker and Matthew Broderick's 3 Kids: Everything They've Said About Parenting Many of Parker's famous friends wished James a happy birthday in the comments of her post. "Happy Birthday JW! Feels like yesterday," wrote Andy Cohen, while Amy Sedaris added, "He is adorable!! Happy Birthday James Wilkie The prettiest eyelashes then and now." "Oh happy happy birthday to the great @jwbr0derick ❤️," Ali Wentworth replied. Along with James, Parker and Broderick share twin daughters Tabitha Hodge and Marion Loretta Elwell, 13. Last year on James' birthday, Parker shared a post for her son, who started at Brown University that year. "He is 19. Today. He doesn't wake with us. He is in his life. Away. In his studies. Among new friends. Sending home details," she wrote. "There is so much to tell. New adults making lasting impressions. Opening his still young eyes. New thoughts. New books. New and different mornings. On this one, it's bittersweet. Not to be with him. To wish him the most happiest of birthdays. Our Scorpio. Our Oct baby. Our JW. Happy Birthday. Balloons. Candles. Hoping every birthday wish to come true."