Lady Gaga is in her “Mother Monster” era. The pop star was photographed cuddling her baby close after a private jet ride on Sunday. The singer, joined by fiancé Michael Polansky, kept the infant shielded with her coat after touching down in Los Angeles over the weekend. The 40-year-old kept a low profile with her outerwear and black sunglasses — but a floral dress and heels peeked out from beneath her trench. Gaga finished her glam travel look with curled platinum tresses. Polansky, for his part, cut a casual figure in a black hoodie, gray shorts, sneakers and a baseball cap. Last Friday, Page Six broke the news that the couple’s first…
