Gwen Stefani debuts 6-month-old son Apollo at tennis’ U.S. Open

Finally, Gwen Stefani’s third child, 6-month-old Apollo Bowie Flynn, has made his debut. And, boy, is he cute.

The singer turned fashion designer brought him out to play on Thursday at the 2014 U.S. Open where Roger Federer of Switzerland was matched against Gael Monfils of France.

Stefani, 44, was all smiles rocking a bold red lip that matched little Apollo’s jacket. Her other two sons, Kingston James McGregor, 8, and Zuma Nesta Rock, 6, whom she shares with husband of 12 years Gavin Rossdale, were missing from the match. But as Us Weekly reported, the mother of three whipped out her phone and used the FaceTime app to connect with Apollo’s older brothers.

The day before the match, Stefani appeared on “Late Night With Seth Meyers” and revealed that Kingston was responsible for bringing Apollo into their lives. While Stefani and Rossdale thought they were done having kids, Kingston had other plans.

“He asked me, ‘Mom, are you going to have a baby? I want you to have a baby.’ I was like, ‘It’s over. We’re not having any more. This is our family.’

“[But] Kingston … has a direct link to God, basically. [He said], ‘Dear God, please let my mom have a baby. Please, God! Please let my mom have a baby.’ I swear to you, he prayed every single night, and four weeks later, I was pregnant.

“I brought out a cake after we found out it was really going to happen and it said, ‘We’re having a baby!’ I made him read it … and he goes, ‘Ah, I prayed for that!’

“Now he prays for everything. He’s like, ‘Please, God! Please let me have another cupcake.’ He really believes!”

The public got to believe it too in January when, after staying mum for longer than the typical 12 weeks into her pregnancy, Stefani finally confirmed the news. Her third son was born in early March.

OK, Gwen, only because Apollo’s adorable, it was worth the wait.