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It's a girl! Christina Aguilera welcomes baby Summer Rain

She's got a name! Christina Aguilera and fiance Matt Rutler have named their daughter Summer Rain Rutler, the singer announced late on Sunday, Aug. 17 via Twitter. PHOTOS: Nude, pregnant stars As Us Weekly reported previously, the happy couple welcomed their daughter into the world on Saturday, Aug. 16, when Aguilera gave birth to the little girl at Los Angeles' Cedars-Sinai Medical Centre. A
Image:Christina Aguilera and her fiance Matthew Rutler
Getty Images file
Image: Christina Aguilera and her fiance Matthew Rutler
Christina Aguilera and her fiance Matthew Rutler have welcomed a baby girl Saturday.Today

She's got a name! Christina Aguilera and fiance Matt Rutler have named their daughter Summer Rain Rutler, the singer announced late on Sunday, Aug. 17 via Twitter.

PHOTOS: Nude, pregnant stars

As Us Weekly reported previously, the happy couple welcomed their daughter into the world on Saturday, Aug. 16, when Aguilera gave birth to the little girl at Los Angeles' Cedars-Sinai Medical Centre.

And barely 24 hours after the arrival of their child, proud mom Aguilera, 33, took to Twitter to share their new daughter's name with fans.

So+proud+to+welcome+our+beautiful+daughter+Summer+Rain+Rutler+into+the+world.

—+Christina+Aguilera+(@xtina)+August+18,+2014+

PHOTOS: Christina's body evolution

Us broke the news in February that Aguilera and fiance Rutler, 28, were expecting a child together. The "Beautiful" singer already has one son, Max, 6, by her first husband Jordan Bratman, but baby Summer Rain is Rutler's first child.

The happy couple announced on Valentine's Day this year that they were engaged to be married, after meeting on the set of her 2010 film "Burlesque."

PHOTOS: Christina's life as a mom

Aguilera has stayed out of the spotlight for most of her second pregnancy, something the new mom has relished. She tweeted in April about how excited she was for the months to come.

"So blissful in taking this time for creating all things blossoming new on the horizon...album, baby & beautiful music to come," she wrote.