Christina Haack and ex-husband Ant Anstead continue to show up for their son Hudson. "Ahhhh man! This time of year is the best!!" Anstead, 46, and Haack, 42, captioned a joint Instagram post on Wednesday, December 17, of the duo attending Hudson's school Christmas show. "Hudzo and his classmates CRUSHED this mornings Christmas gingerbread man performance!" The caption continued: "He sang and narrated like a pro! Cutest....! Well done the entire class! X (oh and never trust a fox!) x Since their split in 2021, Haack and Anstead have remained successful coparents to Hudson, 7, even posing together at their son's school conference in October. Christina Haack Is 'Down' to Help Ex Ant Anstead With a Renovation "Teacher conference week... Hudzo is thriving!" Anstead wrote via Instagram at the time. "I'm gonna give us a pat on the back! We doing a great job with this little chap! Nice work mum x." Haack and Anstead tied the knot in December 2018 before welcoming Hudson in September 2019. (The HGTV star also shares daughter Taylor, 15, and son Brayden, 10, with ex-husband Tarek El Moussa.) Christina Haack, Ant Anstead and their son, Hudson Courtesy of Christina Haack and Ant Anstead/Instagram After less than two years of marriage, Haack revealed in September 2020 that she and Anstead had called it quits. "Ant and I have made the difficult decision to separate," she shared via Instagram alongside a video of the pair walking into the sunset. "We are grateful for each other and as always, our children will remain our priority. We appreciate your support and ask for privacy for us and our family as we navigate the future." After a tumultuous custody battle, Haack and Anstead finalized their divorce in June 2021. Christina Haack and Ant Anstead Celebrate Their Son With Rare Family Photo Following her split from Anstead, Haack was married to Josh Hall from October 2021 until July 2024. She started dating boyfriend Christopher Larocca earlier this year despite her messy divorce from Hall, 45. In January, Haack opened up about how she got on better terms with Anstead following her breakup from Hall. "When Josh and I split up, I hadn't really talked to Ant in years," Haack exclusively told Us Weekly at the time. "The whole time I was with Josh, I would worry [thinking about how] Hudson's sports [games] are coming up, we're going to have to be on the field together, how's Josh going to handle it?" Haack explained that she was "dropping Hudson off at Ant's house" after the split, and he gave her a "big hug and was like, 'I'm here for you and I'm so sorry you're going through this.'" "He said, 'I feel like Josh is the source of the problem [and why] I couldn't communicate,'" she recalled to Us. "Now we're back on track." Christina Haack 'Likes' Ant Anstead's Tribute to Girlfriend Renee Zellweger Anstead and Haack even reunited on an episode of HGTV's The Flip Off in February, where Anstead said that the coparenting relationship he has now built with Haack is "really important." "It has been a transformation," he explained. "As parents, it took us four-and-a-half years to get to that point, which is very shameful." While Haack is dating Larocca, 52, Anstead has been dating actress Renée Zellweger since 2021 - and Haack thinks she is "great" even if she just sees her "on the soccer field or at drop-off" for Hudson. "She's super nice," she told Us in January. "She loves Hudson, and Hudson loves her. And she and Ant are happy."