pop? :-D the definition of rock is difficult today, dunno. Then again most rap today is hip hop, dancehall, or whatever, and not rap either
Unfortunatly you are wrong <A BORDER="0" HREF="http://www.supercars.net/PitLane?displayFAQ=y"><IMG BORDER="0" SRC="pitlane/emoticons/sad.gif"></A> and it is not rap but RNB wich is the biggest crap that the earth has ever heard since the big bang.
If you're talking an increase in sales, it's clearly rap. Rap might even have more sales overall, I wouldn't be suprised.