James "JLo" LoMenzo (born January 13, 1959 in Brooklyn, New York) is a heavy metal bassist known for his roles as a former member of White Lion and Megadeth. He is also known for his work in Black Label Society}.
In the late 1970s, he started in a band called "Empty Sky," a rock band with hints of jazz. The band was based out of Brooklyn and was one of the biggest up-and-coming young bands. James was the lead singer and bass guitarist. The band consisted of Robert Littera at lead guitar, Julie Pontecorvo on Trumpet, Marco Lagana on trombone, Frank Bonanno on tenor saxophone, Oscar Olivera on drums, Vincent Chirico on rhythm guitar and John Buccellato on electric piano. The band broke up as the members began to mature and take their separate career paths.
He played bass with Clockwork, his first original hard rock band in 1980 to 1983. He then went on to play in the band Rondinelli with Ray Gillen before joining White Lion in 1984.