This makes him the first hip-hop artist to release four albums at once. His work with Big Sean received Diamond certification from the RIAA on July 15. That certification means 10 million units sold and streamed, marking the first Diamond certification for both artists in their careers. "It's only like a hundred and some Diamond songs in the whole world, in all genres. E-40 has been a fixture in West Coast rap for decades, while Juvenile helped define the New Orleans sound.