Lady Gaga Free Screensaver. Photos slideshow. Lady Gaga screensaver. This free screensaver contains many pictures of Lady Gaga. Joanne Stefani Germanotta (born March 20, 1986), best known by her stage name Lady GaGa, is an American singer-songwriter and musician. She was born and grew up in Manhattan, where she attended private school at Convent of the Sacred Heart and later studied at New York University s Tisch School of the Arts.