The couple favors unusual names, so it is no surprise that they chose to call him Apollo Bowie Flynn Rossdale. Gavin tweeted the news along with the explanation, "Bowie and Flynn = [our] mother's maiden names."
Stefani, 44, took to Instagram for the first time in January to announce she was pregnant with a baby boy.
She wrote, “I was ready to hand over the crown. but I guess I am still queen of the house. #itsaboy #surroundedbyboys.”
Stefani and Rossdale, 48, are the proud parents of Kingston, 7, and Zuma, 5. Rossdale also has a 24-year-old daughter, Daisy Lowe, from a previous relationship.