Kimberly Stewart Gives Birth to Baby Girl!

 Miguel Villagran/Getty Images

It's a girl!

Kimberly Stewart gave birth to a baby girl Sunday in L.A. This is the first child for the 31-year-old actress, model and daughter of legendary rocker Rod Stewart. Oscar-winner Benicio del Toro's rep confirmed to Us Weekly in April that he was the father.

"Benicio is the father and very supportive," the 44-year-old actor's rep told Us. "Although [he and Kimberly] are not a couple, they are looking forward to the arrival of the baby."

A source tells Us that Rod, 66, and his current wife Penny Lancaster-Stewart were at the hospital during Kimberly's delivery. Alana Collins, who is Kimberly's mother and Rod's first wife, was also present. 

The baby — who has yet to be named — was 22 inches long and weighed 8 lbs 9 oz.

Sign up now for the Us Weekly newsletter to get breaking celebrity news, hot pics and more delivered straight to your inbox!

Want stories like these delivered straight to your phone? Download the Us Weekly iPhone app now!