Here's my picks, guys:

Unsung -

Case
Unifics
G C Cameron
Jerry Butler [[The Iceman)
AWB
Rare Earth
Jesse Johnson
Alexander O'Neal
Billy Stewart
Rockwell
Musiq Soulchild
Calvin Richardson
Brainstorm
Grover Washington, Jr

Unsung Hollywood -

Tatiana Ali [[Fresh Prince of Bel Air)
Aries Spears ,[[comedian/actor/impressionist)
Jayne Kennedy

Enjoy!