Fountain of Youth: The Under 30 Hall of Fame

Photograph By P Joshua Kessler
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Russell Simmons & Rick Rubin, Def Jam Records

Rubin's NYU dorm room served as the incubator for this groundbreaking record label. Since then, Def Jam has released some of the most influential hip-hop records in history, including early releases by LL Cool J, Beastie Boys, and Public Enemy, and was later sold to Universal Music Group for a reported $100 million.