Usher ft. Jay-Z - Best Thing

Its been a good few years since ive heard an usher tune i liked, the last sick one was "You Dont Have to Call". Since then hes gone down the R. Kelly smoother rnb route...which for me just doesnt make the grade. Hes back with Jay-Z (who IMO can do no wrong) on a proper sick Jermaine Dupri instrumental. In fact, its so sick i'd rather listen to the instrumental than the vocal.... but the vocals are still working & its a nice summer tune.