The 36-year-old star announced on Instagram he’s expecting a baby with fiancée Aree Gearhart, their first child together and his fourth.
“Exciting news!!” he wrote. “@seecreature and I are expecting a baby in the summer! Baby No. 4 here we come!”
He included a precious photo with Gearhart, 31, as he cradled her growing belly.
Aree shared the same pic with the message, “today is my birthday, but my gift doesn’t arrive till summer ;-) new member of our tribe coming summer 2022.”
Osbourne is already the father of Pearl, 9, Andy, 6, and Minnie, 4, with ex-wife Lisa Stelly.
Jack and Lisa split in 2018, and Us Weekly reports he met Aree on the Raya dating app later that year.
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In December 2021, Osbourne told his Instagram followers, Today I asked the most beautiful and loving woman I’ve ever met to marry me. She said yes!! Life is a series of doors and I’m so excited to walk through this one with her. She’s truly a magical being with a heart bigger then anything I could have imagined. Her step-mom skills make my heart so full. I couldn’t be happier then I am right now.”
Gearhart also shared the news on her account, writing, “Today my best friend asked me to marry him in a magical winter wonderland. I’ll love you forever and then some @jackosbourne. my soulmate, my adventure partner, my protector. I’m ready for forever w you + our tribe.”
The baby will be joining Jack's famous family, which includes parents Ozzy and Sharon Osbourne.