REMASTERED IN HD!! Official Music Video for Knock You Down performed by Keri Hilson ft. Kanye West. Revisit more legendary 00's music videos: https://www.youtube.com/watch?v=PHn4BaDv_mQ&list=PLJygS-sIE3yYLXTuoX3mJnyGhYvZ7nsMo Watch more remastered videos! https://www.youtube.com/watch?v=QZXc39hT8t4&list=PLJygS-sIE3yYX-u4qIJ6c7cFZM6zEghci (C) 2009 Mosley Music/Interscope Records #KeriHilson #KnockYouDown #KanyeWest