Keri Hilson - Knock You Down Ft. Kanye West, Ne-yo Instant

It features a "moderate R&B groove" in the key of G minor , beginning with a rap intro by Kanye West over stabbing synth riffs.

West's verses represent the "crash" of heartbreak and loss, while Ne-Yo's "crash" symbolizes the positive surrender of falling deeply in love.

in New Zealand , where it was certified quadruple platinum.