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about this song
"Knock You Down" is a song by singer-songwriter Keri Hilson, released as the fourth single from her debut studio album, In a Perfect World… (2009) on April 7, 2009. The song features rapper Kanye West and singer-songwriter Ne-Yo. It was written by the 3 artists alongside Kevin Cossom, Marcella Araica & Danja who produced it. An R&B and pop-rap song, 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.