India, Sept. 12 -- Lady Gaga has stepped into a new role - motherhood. The 40-year-old singer has welcomed her first child with fiance Michael Polansky, according to Page Six, which first reported the news on September 11. PEOPLE also reported that the couple have welcomed their first baby together.

Gaga and Polansky have kept the details of their journey to parenthood extremely private. Even after the news broke, several details about their newborn remain unknown. The couple have not publicly revealed the baby's name, gender or exact date of birth. They were recently spotted with their newborn in Northern California, marking Gaga's first public appearance as a mother.

Lady Gaga Welcomes First Baby With Michael Polansky At 40

Gaga and ...