Jonathan Burks (born October 4, 1964) better known by his stage name Jaz-O, is an American rapper and record producer active in the late 1980s through the 1990s, best known for being the mentor of Jay-Z. Jaz is also known as the Originator and had a song called "The Originators" that featured a young Jay-Z in 1990. As The Jaz, he had success with his 1989 single "Hawaiian Sophie" from his debut album Word to the Jaz. He has been featured on some of Jay-Z's songs, (such as "Bring it On" from Reasonable Doubt), "Ain't No Nigga", and the single "Nigga What, Nigga Who (Originator 99)" from Vol. 2: Hard Knock Life, where he was credited as Big Jaz. He also produced the single "Ain't No Nigga" from Reasonable Doubt and the song "Rap Game/Crack Game" from In My Lifetime, Vol. 1. The album "Kingz Kounty (2002) - with The Immobilarie Present" marked the last time Jay-Z and mentor Jaz-O would ever collaborate.