dude soorry but royce da 5'9" isnotunder ground. royce da 5'9" had videos on MTV, n shit, the underground hiphop scene faded, common used to be, atmosphere, dilated, they all used to be underground before they became mainstream.
I think Rasco and Planet Asia, are much better togather as well, i have rascos solo cd's there not to great, Planet Asia is hella sick, get his solo cd
also try these peeps u might like um
eyedea and abilities,
people under the stairs,
7L & Esoteric,
not too underground but Mac Dre aswell
jus to name a few of my fav.