Gwen Stefani Wishes Her Son Apollo Happy Birthday: "I Love U So Much"

Gwen Stefani's youngest son is growing up! On Feb. 28, the singer and "The Voice" judge celebrated her son Apollo Rossdale's ninth birthday on Instagram and penned a sweet message to him. "My world is so much bigger with u in it," Stefani wrote in a post alongside various videos and photos of Apollo, one of which included her husband, Blake Shelton. "happy birthday, apollo ♥️♥️ i love u so much."

Stefani shares Apollo with her ex-husband, Gavin Rossdale, who's also the father of her other two boys, Kingston and Zuma. The former couple divorced back in 2015 after 13 years of marriage, sharing in a joint statement at the time, "While the two of us have come to the mutual decision that we will no longer be partners in marriage, we remain partners in parenthood and are committed to jointly raising our three sons in a happy and healthy environment."

Stefani has since been candid about her parenthood journey, opening up about the highs and lows of it on DJ Khaled's "The First One" podcast back in May 2021. "I don't take it lightly and I'm so grateful that I have them, and I got to have three boys," the singer shared. "I don't know why God chose me to be surrounded by boys my whole life, but here I am just surrounded by them, and I just feel really blessed. It's really fun."