Jon Zazula (New York, March 16, 1952-Florida, February 1, 2022), also known as Jonny Z, was an American businessman and record producer, recognized for having been the owner of the record store Rock'n Roll Heaven from New Jersey City and the founder of Megaforce Records.
His record store in East Brunswick, New Jersey made him one of the most popular figures in the rock scene on the East Coast of the United States. His intervention and that of his wife Marsha was crucial in the career of Metallica, as Zazula offered the band the first opportunity to play in New York and organized their first tours with the group Raven, one of the most important bands on the British scene at the time.
After hearing the No Life 'til Leather demo, Zazula founded the label Megaforce Records to release the material. He also released Metallica's debut album, Kill 'Em All. Following the success of Kill 'Em All, Zazula worked with other artists and bands such as Warren Haynes, Testament, Tad, Overkill, Frehley's Comet, King's X, Ministry and Anthrax. His wife Marsha died of cancer on January 10, 2021.
He passed away on February 1, 2022 at the age of 69, just over a year after the death of his wife Marsha.