1) - Jon Zazula (1952 – February 1, 2022), also known as Jonny Z, was an American music industry executive who was the owner of New Jersey's Rock'n Roll Heaven record store and founder of record label Megaforce Records. He was known for launching Metallica's career.

[2)[/b] - Jonny Z (real name John Zazueta) is an American hip hop artist and producer from San Diego, California. One of the true pioneers of Latino Hip Hop. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.