Lady Gaga, is an American singer, songwriter, record producer, actress, and businesswoman. She is known for reinventing herself throughout her career and for her versatility in numerous areas of the entertainment industry. Ariana Grande-Butera is an American singer, songwriter, and actress. A prominent figure in popular music, Grande is known for her four-octave vocal range and the use of the whistle register. Born in Boca Raton, Florida, Grande began her career in the 2008 Broadway musical 13.