NASHVILLE, Tenn. — Mandisa, a contemporary Christian singer who appeared on “American Idol” and won a Grammy for her 2013 album ‘Overcomer’, has died. She was 47. A representative for the singer told The Associated Press that the singer was found dead in her home in Nashville, Tennessee, on Thursday. The representative said the cause of Mandisa’s death was not yet known. [time-brightcove not-tgx=”true”] Mandisa, whose full name was Mandisa Lynn Hundley, was born near Sacramento, California, and grew up singing in church.