June 14 (UPI) --
Selena Gomez became a big sister
Thursday as her lookalike mother, Mandy Cornett, gave birth to a baby girl.
The singer's former best friend, Demi Lovato, broke the news about Gomez's new sibling in a tweet.
Gomez first hinted that her mother was pregnant in May when she posted a picture in which she's seen with he hand on her mother's baby bump.
This is Cornett's first child with her husband Brian Teefy as well as Gomez's first sibling.
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