Jack Osbourne and his fiancée Lisa Stelly have become first-time parents to a little gem – a baby girl called Pearl.
Pearl's arrival makes Ozzy Osborne a grandfather - and Sharon a grandmother!
Their daughter weighed a bouncing 8lb 6oz and was greeted by Jack's mum Sharon with the message: "Today I witnessed my first grandchild being born, life changing experience. She is an angel."
The news was broken last night by HELLO magazine's editor Rosie Nixon on her Twitter page, where she wrote: "Big congrats @MrJackO & @lisamarstelly who today welcomed baby Pearl into the world."
Last November, Jack, 26, revealed on Parentdish.co.uk that he was "excited" about becoming a dad for the first time, and said it was a "very good thing" that his aspiring model and actress girlfriend Lisa, also 26, was expecting.
"It wasn't planned," he said, before adding: "It's going to be a new chapter in my life!"
Like you wouldn't believe, Jack. Like you would NOT believe!
Congratulations and best wishes to the three of them.