Jean Baptiste Lacroix / WireImage.com 1 / 16
Jean Baptiste Lacroix / WireImage.com 1 / 16

There's a new baby spice in town!

Melanie Brown gave birth to a baby girl Thursday, Us Weekly confirms. Brown, 36, has two daughters -- Phoenix, 12, and Angel, 4 -- from a previous relationship, and hubby Stephen Belafonte, 35, also has a 6-year-old daughter, Giselle, from a previous relationship.

"Finally our baby arrives! Stephen nearly passed out, Phoenix screamed, I laughed so hard the baby popped out!" Brown tweeted Friday. "She is just sooo amazing!"

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On Wednesday Brown tweeted: "The baby will come when it's good and ready, so for now [I'm] working as usual to keep my mind off being overdue!"

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In early August, Brown invited several famous friends over for a nontraditional baby shower at her California home. Guests -- including Kim Kardashian and Denise Richards -- celebrated Brown's then baby-to-be in a "laid-back, party atmosphere," according to an insider.

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In July, fellow Spice Girl Victoria Beckham and hubby David welcomed a baby girl, Harper Seven. Emma Bunton welcomed her second child with fiance Jade Jones in May.