Related Information for Jamie Rivera Jamie Rivera is a pop singer from the Philippines. She was born Mary Jane C. Mendoza on August 29. She graduated from University of Santo Tomas.Jamie’s actual training began when she joined the Metropolitan Theatre chorus in 1985. She decided to pursue her solo singing career by winning the prestigious search for G.A. Yupangco’s Yamaha Music Mate Girls contests while finishing her Bachelor of Science in Commerce degree major in Economics at the University of Santo Tomas. Soon after, O.. read more