Who is the founder of Def Jam?

Def Jam Recordings was co-founded by Russell Simmons and Rick Rubin in 1984. The label played a pivotal role in popularizing hip-hop music and culture, launching the careers of numerous influential artists. Russell Simmons is often recognized for his business acumen and promotion of hip-hop, while Rick Rubin is known for his innovative production techniques. Together, they established Def Jam as a cornerstone of the music industry.