The Voice coach and her fiancé Matt Rutler welcomed a daughter on Saturday, Aug. 16 in Los Angeles.
This is the second child for Aguilera, 33, who is already mom to a 6½-year-old son, Max Liron, from her previous marriage to Jordan Bratman.
The popstar’s pregnancy was revealed in February, a week after Aguilera had announced her engagement to Rutler, a film producer whom she had met on the set of Burlesque in 2010.
The singer tweeted “So proud to welcome our beautiful daughter Summer Rain Rutler into the world,”.