Led by the beautiful, mellow-voiced singer Sade Adu, London-based R&B act Sade crossed over to the U.S. in the early-'80s. The sanguine, jazz-inflected vibe made it a perfect fit for the quiet storm movement. Though Sade only released six albums since their 1984 debut, Diamond Life, all of their releases have been praised by critics and fans alike. It's no surprise that Sade's soulful melodies have been sampled by artists ranging from 2Pac to MF Doom.