Lyrics help: a black dude songs it and.……?

In the beggining it starts like " na na na, na na, na na" and then in the backround, a female black lady is in the backround saying " whoah o o o oah!!!" and the the black guy starts doing rap while the black chick is still doing that same sound and also constanltly, the black chick goes " di di do do du du, lei"