Pop star Christina Aguilera has welcomed a baby girl with fiance Matthew Rutler.

Christina Aguilera performs onstage at StubHub Center in Los Angeles.

This is the first child for Rutler and the second for Aguilera, who has a 6-year-old son Max with her first husband, Jordan Bratman, reported Us magazine. Christina Aguilera, 33, gave birth on August 16 via a C-section at Cedars-Sinai Medical Center in Los Angeles.