The song explores the unpredictable and often overwhelming nature of love—how it can "knock you down" just when you least expect it.
Critics were divided on whether the heavy-hitting guest features overwhelmed Hilson, though many praised the song's infectious, radio-friendly energy. Chart Performance & Accolades "Knock You Down" was a massive commercial hit, peaking at: #3 on the Billboard Hot 100 . #1 on the Hot R&B/Hip-Hop Songs chart.
Produced by , the track is a blend of R&B, hip-hop, and pop elements.