PIC: Kate Hudson Flaunts Baby Bump in Cut-Out Dress at Grammys

Kate Hudson
 Lester Cohen/WireImage.com

Kate Hudson wasn't afraid to show off her growing baby bump at Sunday's Grammy Awards.

The pregnant actress flaunted her figure backstage at the music fete in a Roberto Cavalli frock with side cut-outs.

Supporting her rocker boyfriend, Muse's Matt Bellamy, Hudson posed for photos with Keith Urban's wife, Nicole Kidman, and cuddled with Bellamy during the show.

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When her beau's band took home a Grammy for Best Rock Album, the 31-year-old star was top of mind.

"I'd like to give a special thanks to my beautiful pregnant girlfriend over there," Bellamy said during his acceptance speech, without mentioning Hudson by name.

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Though Us Weekly was the first to report that the actress is expecting her second child, Hudson took her time before sharing the news with those closest to her.

"I'm pregnant, and I'm really sick," she tells London's The Times. "But I couldn't say that because you really want to keep it as quiet as you can for the first trimester." See more photos of Kate at the Grammys.

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"My friends all thought I was depressed because I wouldn't leave the house. But I didn't want anyone to know for a long time. I was just hoping that all of a sudden I could show up somewhere with a big belly," she continues. "But, of course, you're somewhere in L.A., and somebody says something, and it ends up somewhere. And here we are."

Hudson is also mom to 7-year-old son, Ryder, with rocker ex-husband Chris Robinson.

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