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Stefani Joanne Angelina Germanotta (born March 28, 1986), known professionally as Lady Gaga, is an American singer, songwriter, and actress. She is known for her unconventionality and provocative work as well as experimentation with new images. Gaga began her musical career performing songs at open mic nights and school plays. She studied at Collaborative Arts Project 21 (CAP21) through New York University's Tisch School of the Arts before dropping out to become a professional musician.

Stefani Joanne Angelina Germanotta was born on March 28, 1986, at the Lenox Hill Hospital in Manhattan, New York City, to a Catholic family with Italian and French Canadian roots. Her parents are Cynthia Louise (nee Bissett) and Internet entrepreneur Joseph Germanotta, and she has a younger sister, Natali. Brought up in the affluent Upper West Side of Manhattan, she says that her parents came from lower-class families and worked hard for everything. From age 11, she attended the Convent of the Sacred Heart, a private, all-girls Roman Catholic school. Gaga described her academic life in high school as "very dedicated, very studious, very disciplined" but also "a bit insecure". She considered herself a misfit among her peers and was mocked for "being either too provocative or too eccentric".  Gaga began to play the piano at the age of four when her mother insisted she become "a cultured young woman", taking lessons and practicing the instrument throughout her childhood. The lessons taught her to create music by ear, which she preferred over reading sheet music and practiced professionally. Her parents encouraged her to pursue music, and enrolled her in Creative Arts Camp. As a teenager, she played at open mic nights. At her high school, Gaga played the lead roles of Adelaide in Guys and Dolls and Philia in A Funny Thing Happened on the Way to the Forum. She also studied method acting at the Lee Strasberg Theatre and Film Institute for ten years. Gaga unsuccessfully auditioned for New York shows, though appeared in a small role as a high school student in a 2001 episode of The Sopranos titled "The Telltale Moozadell". She later said of her inclination towards music:  I don't know exactly where my affinity for music comes from, but it is the thing that comes easiest to me. When I was like three years old, I may have been even younger, my mom always tells this really embarrassing story of me propping myself up and playing the keys like this because I was too young short to get all the way up there. Just go like this on the low end of the piano ... I was really, really good at piano, so my first instincts were to work so hard at practicing piano, and I might not have been a natural dancer, but I am a natural musician. That is the thing that I believe I am the greatest at.  In 2003, at age 17, Gaga gained early admission to Collaborative Arts Project 21 (CAP21)--a music school at New York University (NYU)'s Tisch School of the Arts--and lived in an NYU dorm. At NYU, she studied music and improved her songwriting skills by writing essays on art, religion, social issues, and politics, including a thesis on pop artists Spencer Tunick and Damien Hirst. During the second semester of her sophomore year in 2005, she withdrew to focus on her music career. The same year, she played an unsuspecting diner customer for MTV's Boiling Points, a prank reality television show.  In 2014, Gaga said she had been raped at the age of 19, for which she underwent mental and physical therapy. She has posttraumatic stress disorder that she attributes to the incident, and says that support from doctors, family, and friends has helped her.
Lady Gaga