What song goes nah nah nah nah nah nah nah nah nah-nah naah?

This song is Michael Jackson's "P.Y.T. (Pretty Young Thing)".

It goes:

MJ: nah nah nah

Girls: "nah nah nah"

MJ: naah nah nah naaah

Girls: naah nah nah naah

MJ: oooowww take it back take it back I want to love you PYT.

That would be it... if not sorry for wasting your time (mostly mine) JK

Additional songs you may want to consider:

"Land of a Thousand Dances" (or "Land of 1000 Dances")

"Hey Jude"

"Nah, Nah, Hey, Hey, Kiss Him Goodbye"

(Edit: Clean up and addition to original answer)