P.M. Dawn topped the charts in the early '90s with hits "Set Adrift on Memory Bliss" and "I'd Die Without You," which explored the boundaries of hip-hop; surviving member Eternal shares on the group's success and honors the life of brother Prince Be.

Das EFX gain popularity in the early '90s for their animated flow that birthed a new sound in hip-hop called the iggity flow; with No. 1 hits "They Want EFX" and "Mic Checka," Das EFX secure platinum success and a career that spans three decades.

The 90s was a decade of triumph and turbulence, as R&B and hip hop went well beyond crossover to dominate the charts and define mainstream American music, while artists found ways to impact society in ways both serious and playful.