Nasir bin Olu Dara Jones, known professionally as Nas, is an American rapper and entrepreneur. Rooted in East Coast hip-hop, he is regarded as one of the greatest rappers of all time. The son of jazz musician Olu Dara, Nas began his musical career in 1989 under the moniker "Nasty Nas", and recorded demos under the wing of fellow East Coast rapper Large Professor. Nas made his recording debut on Professor's group, Main Source's 1991 song "Live at the Barbeque".
Nas signed with Columbia Records in 1992, and released his debut studio album, Illmatic, two years later. An inductee of the Library of Congress's National Recording Registry, it has been regarded as one of the greatest hip-hop albums of all time. His second album, It Was Written, debuted atop the Billboard 200 and sold over a quarter-million units in its first week; the album, along with its lead single "If I Ruled the World", propelled Nas into mainstream success. Both released in 1999, Nas's third and fourth albums I Am and Nastradamus were criticized as inconsistent and too commercially oriented, with critics and audiences fearing a decline in the quality of his output.
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