04/24/2012 08:17 pm ET Updated Apr 25, 2012

Pearl Osbourne: Jack Osbourne's Baby Girl With Lisa Stelly: REPORT

Jack Osbourne is officially on diaper duty!

HELLO! Magazine is reporting that the 26-year-old, who is the son of rock legend Ozzy Osbourne, and his girlfriend Lisa Stelly have welcomed their first child together.

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