I don't know anything about that Pharell dude, but Clipse is cool. I heard two or three tracks by Clipse... Pretty slick.

As for Del and producers... I can only guess he likes what he's got/who he knows. I think Del needs to try to hit up Blockhead. I think that would be a good match.

hmm that's odd to not have heard N.E.R.D.

I'm pretty sure you've heard songs that were produced by The Neptunes but didn't realize

I know that one song by NERD that everyone knows, but I don't even know the name. It was pretty good. You know which one I mean. :P

Yeah Lapdance but there is also rockstar that was pretty popular

Yeah, the rockstars and cop cars one. Lapdance? Nah. Haven't heard it.