Lady Gaga was born on March 28, 1986 in New York City. Her real name is Stefani Joanne Angelina Germanotta. She's an American singer, songwriter, fashion designer, philantropist, actress and LGBT activist. She became famous in 2008 with her album The Fame. She learned to play piano when she was 4. She started singing in public at the age of 14. She loved acting in school musicals. She got her stage name from the Queen song "Radio Gaga". As of November 2013, she had sold 24 million albums and 125 million singles worldwide. She was named one of the most influential people in the world by Time magazine.