WATCH! Russell Simmons & Rick Rubin Discuss 25 Years Of Def Jam Now! (LIVE STREAM)

Founders of Def Jam, Rick Rubin and Russell Simmons will be discussing Def Jam's influence in hip-hop culture in the New York Public Library tonight at 7 p.m. ET.

STORY: Breaking Down The Def Jam Book By The Numbers

These two pioneers had no idea at the time that their music label would be the premiere force behind some of music's greatest artists. 

Russell and Rick will be discussing and celebrating the publication of Def Jam Recordings: The First 25 Years of the Last Great Record Label, which is an art book featuring scores of iconic images, rare artifacts, and memorabilia alongside captivating text written by Bill Adler and Dan Charnas.

Watch the live stream below!