Stefani Joanne Angelina Germanotta, born on March 28th, 1986, Manhattan, New York City, U. S., known professionally as Lady Gaga, is a singer, songwriter, musician, record producer and actress. Gaga is known for her originality and provocative work, as well as visual experimentation, having sold 27 million albums and 146 million singles by January 2016. | Lady Gaga by Harry Lime, Paperback | Indigo Chapters