Christina Aguilera gave birth to a baby girl over the weekend!

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The multi-platinum singer and her fiancé, Matt Rutler, welcomed their first child together on Saturday in Los Angeles.

Aguilera announced the arrival and the baby's name via Twitter on Sunday night.

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"So proud to welcome our beautiful daughter Summer Rain Rutler into the world," she wrote.

Days before she gave birth, Aguilera shared an adorable photo of her baby bump on Twitter. The Beautiful singer appeared in the studio in a long white dress and held earphones to her stomach.

"Baby girl getting first listen to what mama's been creating in the studio," she wrote as the caption on Aug. 11.

The star also proudly flaunted her baby bump for V magazine weeks before giving birth. She shared a photo from the shoot on her Instagram page on Aug. 1 and thanked photographer Brian Bowen Smith in the caption. "I couldn't appreciate you & your team more for bringing to life such an epic shoot. Giving me the freedom to bare my soul & body at this incredible, magical, transition time in my life. #Grateful," she wrote.

Aguilera revealed her pregnancy in February, one week after she announced her engagement to her beau. Aguilera, 33, and Rutler, 29, began dating in 2010 after they met on the set of the film Burlesque, in which she starred and he worked as a production assistant.

The Voice coach already has one son, Max Liron, 6, with her former husband of five years, Jordan Bratman.