I think the nike song u r talking about r done by superproducer duo the Neptunes with one half of them,Pharrell Williams singing.
i think u can find them at nikefreestyle.com
I'm looking for the artist/title to 2 songs: the first is among the newest nike commercials that shows everyone dunking on a variety of hoops. The other is the the promo for the man show Adam&Jimmy finale. anybody who's got the 411 feel free to email me at aphbomb@hotmail.com