Earlier today, we talked about Billboard's top 10 most popular singles of the last 50 years. It turns out Billboard did a similar rundown of the top Hip Hop/R&B singles. The list, which is based solely on sales and radio spins, proves that several notables aren't as commercially popular as one might think. Usher, Flo Rida, and Next (yes, of "Too Close" fame) made the top 10. Biggie and Tupac are rolling in their graves. Jay-Z is rolling in his Maybach. Aretha Franklin probably doesn't care. [AHH]