Christina Aguilera and Matt Rutler Welcome Baby Girl

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Christina Aguilera's beautiful baby has arrived!

The 33-year-old Grammy winner and her fiance Matt Rutler welcomed a baby girl at Cedars-Sinai Medical Center in Los Angeles on Saturday, Aug. 16, Us Weekly is reporting.

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Aguilera reportedly gave birth via C-section. This is the first child for Rutler and The Voice mentor, though Aguilera does have a six-year-old son Max from her previous marriage to Jordan Bratman.

She tweeted the baby news late Sunday night, writing: "So proud to welcome our beautiful daughter Summer Rain Rutler into the world."

The pop star has been sharing pics of her baby bump during the course of her pregnancy, even posing nude for V magazine. She Instagrammed on Aug. 1 how pleased she was with the photo shoot, writing: "[Thank you for] giving me the freedom to bare my soul & body at this incredible, magical, transition time in my life. #Grateful."

Congrats to the new parents!