Ant Anstead References Girlfriend Renée Zellweger in Son Hudson's Sweet Birthday Tribute — and Christina Hall Comments

Ant Anstead is celebrating his little boy's big day! On Friday, Sept. 6, the proud dad, 45, shared a sweet Reel on his Instagram as he celebrated his son Hudson's fifth birthday. Anstead, who shares Hudson with ex Christina Hall, included a round-up of photos from throughout Hudson's life, including an adorable photo of the father-son duo posing together. "Happy birthday Hudzo! WOW what a privilege it’s been to witness you become a bright, sparkly, funny, brilliant, generous magnetic, talented and kind little man," Anstead began his caption.