Def Jam Recordings' hip-hop history is unmatched. Forty years after getting into the music business, the label is celebrating its rich lineage with a special anniversary hub.

Def Jam has created an interactive timeline highlighting major milestones and moments over the course of its four-decade long legacy. The Def Jam 40 hub dives into the expansive heritage of the brand and the hundreds of artists who have helped shape the lasting imprint.

Documented in the hub timeline, the label, cofounded by Rick Rubin and Russell Simmons in 1984, the label's hip-hop run started with humble beginnings. The first releases were 12-inch singles for T La Rock and Jazzy J's "It's Yours," LL Cool J's "I Need a Beat" and Beastie Boys' "Rock Hard." The label would press forward with future Rock & Roll Hall of Fame inductees LL and Beastie Boys, starting what would be a time-tested run.

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