Lady Gaga appears to have her own little monster! The singer, 40, and Michael Polansky, have quietly welcomed their first child, according to multiple reports on Friday, September 11. Photos of Gaga holding a baby as she walked with Polanksy were published by Page Six. Additional details about the baby’s birth date, gender and name are not yet known. Us has reached out to Gaga’s reps for comment. The singer has been open over the years about her desire to become a mother. She revealed in a January 2012 interview with The Insider that she wanted to have children “someday,” c...