Mariah Carey is an American singer, songwriter, actress, and record producer renowned for her five-octave vocal range. She has become one of the most successful contemporary recording artists in history, with a net worth of $535 million. Born on March 27th, 1969, Mariah a Guinness World Record title as the "Songbird Supreme." Her melismatic singing style and signature whistle register notes have propelled her to stardom. With improvisational skills she mastered over time, Mariah Carey has been able to write critically acclaimed music since her debut in 1990.