There are separate male and female categories in both hip-hop and mainstream (the Walk of Fame’s term to describe R&B that is not hip-hop). But there’s just one combined male/female category for legacy artists, gospel and music & entertainment moguls. (The legacy artist award is designed for artists who began their careers prior to 1980. The other categories are for artists who have been active for at least 25 years.)
There is no jazz category, nor are there designated categories for groups or duos. As a result, three groups or duos -- OutKast, Run-D.M.C. and Public Enemy -- are vying for the male hip-hop award.