Mary J Blige net worth: Mary J Blige is a New York-born singer, song writer and producer who has a net worth of $5 million dollars. Mary J Blige was born on January 11, 1971 in the Bronx. She got her start in the music world as a backup singer for Uptown Records. Soon she was paired up with a promising 22 year old Uptown producer named Sean Combs, aka Diddy. Her first album was 1992′s "What's the 411?". In total she has released 10 albums, eight of which have gone platinum. To date, Mary J. Blige has sold 50 million records and 15 million singles. She has also won nine Grammys. Unfortunately Mary J has had a series of financial issues over the years. As of May 2013, Ms. Blige owes the IRS $3.4 million. She also owes the state of New Jersey $900,000 and is the target of a lawsuit that claims she owes $2.2 million for an unpaid bank loan.