"Knock You Down" featuring Kanye West & Ne-Yo is the fourth single from the album (first for Latin America and second for Europe) confirmed by Hilson on her YouTube video blog. The video was premiered on March 23, 2009, on Ne-Yo's official YouTube channel. The single is Hilson's best solo release to date reaching number three on the "Billboard" Hot 100 and number one on the US R&B/Hip-Hop chart. It has already been released as the second single in Europe and so reached number five on the UK Top 40 and number 2 on the UK R&B Chart.