According to the Knock You Down Songfacts, this song features Kanye West and Ne-Yo, who also appear as Hilson's two love interests in the music video. Ne-Yo made his contribution to the song first. West then met up with Hilson after the album had been recorded and was given an exclusive preview to see on which song he'd like to feature. He chose this track and he laid down some last minute additional vocals.
Keep rocking, and keep knocking
Whether you Louboutin it up or Reebokin'
You see the hate, that they're serving on a platter
So what we goin' have, dessert or disaster