James Corden and his wife Julia Carey welcomed their third child together Tuesday, which led to Harry Styles stepping in to guest host "The Late Late Show."
"We can't stop smiling," he continued. "Thank you Harry for stepping in to host the show at 2 and a half hours notice!"
Corden and Carey are already parents to 6-year-old son Max and 2-year-old daughter Carey.
Styles, when hosting "The Late Late Show," joked about having just visited Corden and his newborn inside the hospital.
"I was sitting at home two hours ago in this suit, obviously," Styles said.
"I got the call Jules was going into labor so James naturally called the funniest man he knew... he obviously wasn't available."
The pop star and late night host were recently seen kissing each other on "The Late Late Show" during a special Christmas edition of Carpool Karaoke.