James Corden and Wife Julia Welcome Baby No. 3

The late-night host and his wife welcomed a baby girl on Tuesday.

James Corden is a new dad once again!

The late-night host and his wife, Julia, welcomed a baby girl on Tuesday, Corden announced on Twitter.

"Today we welcomed a beautiful baby daughter into the world," Corden tweeted. "Both she and her mother are doing great. We can’t stop smiling. Thank you Harry for stepping in to host the show at 2 and a half hours notice! x x x."

ET confirmed that the couple -- who married in 2012 -- were expecting baby No. 3 back in July. Corden and his wife are already parents to a 6-year-old son, Max, and 3-year-old daughter, Carey. Congrats to the happy family!

The "Harry" referenced in the late-night host's tweet is likely Harry Styles, who crashed The Late Late Show for a whole week back in May. Check out highlights from his hosting stint in the video below.