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Uma Thurman gives birth to baby girl

Uma's a mama again! Uma Thurman gave birth to a baby girl on Sunday, a source confirms exclusively to Us Weekly. No other info was immediately available.It's the third child for the 42-year-old Oscar nominee, who has two children -- Maya, 13, and Levon, 10 -- with ex-husband Ethan Hawke, and her first with financier beau Arpad Busson.PHOTOS: Stars who got pregnant past age 40The "Smash" guest star
Jamie Mccarthy / Getty Images file / Today

Uma's a mama again! Uma Thurman gave birth to a baby girl on Sunday, a source confirms exclusively to Us Weekly. No other info was immediately available.

It's the third child for the 42-year-old Oscar nominee, who has two children -- Maya, 13, and Levon, 10 -- with ex-husband Ethan Hawke, and her first with financier beau Arpad Busson.

PHOTOS: Stars who got pregnant past age 40

The "Smash" guest star and Busson, 49, called off their engagement in 2009, but reunited last year. "Uma was definitely not planning on having another kid. It was a surprise," a source told Us, which first broke new of Thurman's pregnancy back in February. "But she's over the moon about it, very excited."

PHOTOS: Pregnant bikini bods

Thurman and her daughter-to-be were feted at a small baby shower in NYC May 31 thrown by her half-sister Taya Thurman. Among the two-dozen guests at the baby pink-elephant themed bash were Thurman's "Smash" costars Debra Messing and Will Chase.

PHOTOS: Uma and other moms on the go

Thurman's ex-husband Hawke has also become a parent again following their 2004 divorce; the actor, 41, and second wife Ryan are parents to young daughters Clementine, 3, and Indiana, 11 months.

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