<P> The song is a contemporary R&B and hip hop song, which includes elements of pop music . The lyrics of the song pertain to how love "knocks you down ." Part of the song refers to Michael Jackson; coincidentally it was released at the time surrounding the death of the singer . The song received generally mixed to positive reviews, with critics divided as to whether Ne - Yo and West overwhelmed Hilson's appearance . However, reviewers also complimented that the song was radio - friendly . It was nominated for multiple awards, including Best Rap / Sung Collaboration at the 52nd Grammy Awards . </P> <P> "Knock You Down" peaked at number one in New Zealand, and was certified Platinum by the Recording Industry Association of New Zealand . It also reached the top ten in Canada, Ireland, the United Kingdom, and the United States . The song's music video was directed by Chris Robinson . It sees Hilson caught in a love triangle with her former partner West, and new - found love Ne - Yo . The video received positive reviews, which appreciated the given performances given by the artists . Hilson performed the song a number of times, including television appearances such as on The Rachael Ray Show . She also notably performed the song at the 2009 BET Awards, where she used the Jackson reference of the song to give a tribute performance to the late singer . </P> <P> Hilson and Ne - Yo knew each other from their days as co-songwriters . Hilson had appeared as Ne - Yo's love interest in the video for his song "Miss Independent," the second single taken from his 2008 album, Year of the Gentleman . In a September 2008 interview with Rap - Up about a recent crop of songwriters becoming singers, Ne - Yo said "For one, I think Keri Hilson's too freakin' pretty to be in the background . For two, her voice is incredible--on top of the fact that she can write . So I think that she's definitely one that deserves the spotlight ." In "Knock You Down", Kanye West makes multiple references to Michael Jackson, and coincidentally, the song was released in numerous territories around the death of the singer . </P> <Table> <Tr> <Td> </Td> <Td> "Knock You Down" A sample of the chorus of "Knock You Down", which is said to be in a "frenetic midtempo groove" </Td> </Tr> <Tr> <Td_colspan="2"> Problems playing this file? See media help . </Td> </Tr> </Table>

Keri hilson ft neyo and kanye west knock you down