Lady Gaga and her fiance Michael Polansky have welcomed their first child together. The Born This Way singer, 40, and the 42-year-old entrepreneur – who have been engaged since March 2024 – were recently spotted on a family walk with Gaga holding the baby, according to the New York Post's Page Six. Reports of the new addition to their family come after Gaga kept a low profile in recent months, last being seen in August when she took a selfie with a fan. Gaga – who is known as Mother Monster to her fans – has frequently spoken of her desire to become a mother. During an appearance on The Late Show with Stephen Colbert last year, she said:…