Jack Osbourne, 40, shared a new photo of his four-month-old daughter, Ozzy Matilda Osbourne, on Instagram on July 31, 2026.
The baby, named in honor of her late grandfather, rock legend Ozzy Osbourne, was pictured smiling while held by her father outdoors.
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In the photo, the infant wore a pink onesie, while Osbourne sported a wide-brimmed hat and denim jacket.
He captioned the post, "little miss ozz already has a mischievous sparkle."
Followers quickly noted the physical similarities between the baby and the late Black Sabbath vocalist, who passed away at age 76 in July 2025.
One user commented, "Not to sound cliche, but she honestly had your dad's smirk." Another wrote, "She's ozzy's granddaughter for sure.
What a beautiful child. your [sic] a great daddy!!"
A third commenter added, "I’ve always thought she has the Osbourne smile!!" and called the infant "absolutely precious."
Ozzy Matilda was born on March 5, weighing seven pounds and 12 ounces.
She is the second child for Osbourne and his wife Aree Gearheart; the couple also has a four-year-old daughter named Maple.
Osbourne shares three older daughters—Pearl, 14, Andy, 11, and Minnie, 8—with ex-wife Lisa Stelly.
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The family publicly introduced the newborn in March via a black-and-white video featuring a plush bat, referencing Ozzy Osbourne's famous 1982 onstage incident.
Prior to the birth, Osbourne spoke about the pregnancy in an interview with The Sun on Sunday published in December 2025.