Way back in 2004, a very pouty R. Kelly sued Jay-Z over their Best of Both Worlds tour, which went horribly awry when (a.) one of Jay's entourage maced R. Kelly (to hear R. tell it) or (b.) R. Kelly got pissy and jealous when Jay-Z got more attention and decided to sue to detract attention from his child molestation case (to hear Jay-Z tell it.) Either way, he's no stranger to concert tours ending in lawsuits. That's where Ne-Yo comes in. He's suing R. Kelly for booting him off of the Double Up tour, because, Ne-Yo says, Kelly was pissy and jealous of Ne-Yo's popularity. I'm sensing a pattern here. [AHH]