Jimmy Kimmel, Molly McNearney Jimmy Kimmel, Molly McNearney

It's a girl for Jimmy Kimmel and his wife Molly McNearney!

McNearney delivered their baby Thursday morning, Kimmel announced via Twitter. "Congratulations to my beautiful and very tough wife @mollymcnearney on delivering our baby girl this morning," he tweeted Thursday.

See more celebrity baby news

Added McNearney: "Kids, don't do drugs. Until you have a baby. Then do ALL OF THEM."

This is the first child for McNearney and Kimmel, who were married in 2013. Kimmel has a son and a daughter, both in their 20s, from his marriage to Gina Maddy, which ended in divorce in 2002.

Watch This Tonight — See why Welcome to Sweden is our editors' pick: