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Spice Girls' Geri Halliwell welcomes baby No. 2, Montague George Hector Horner

by Erin Clements / / Source: TODAY

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There's a new "Baby Spice"!

Former Spice Girls member Geri Halliwell Horner (aka Ginger Spice) announced Saturday that she's welcomed her second child, a baby boy.

The proud mom posted an adorable photo of herself holding the infant's tiny foot on Instagram, revealing his name: Montague George Hector Horner.

In a tweet earlier this morning, she shared the little one's weight: 7 pounds, 8 ounces.

This is the 44-year-old's first child with husband Christian Horner, the 43-year-old manager of the Red Bull Formula One auto racing team, whom she married in May 2015. The couple began dating in 2014.

The pop star is also mom to a 10-year-old daughter, Bluebell Madonna, whose father is screenwriter Sacha Gervasi. Montague's dad has a daughter, Olivia, from a previous relationship with Beverley Allen.

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Geri Halliwell Horner and husband Christian Horner attend the world premiere of "I Am Bolt" at Odeon Leicester Square on Nov. 28, 2016 in London.Gareth Cattermole / Getty Images

In her Instagram caption, Halliwell wrote that their latest addition was "a beautiful little brother for Bluebell and Olivia."

RELATED: Spice Girls' Geri Halliwell shows off her baby bump in new pic

Little Montague isn't the only one celebrating a birthday on Jan. 21: Fellow Spice Girl Emma Bunton, who turned 41 on Saturday, took to Twitter to send her love.

Halliwell publicly announced her pregnancy back in October, with a fitting hashtag: #mamaspice.

We wish the family all the best!

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