"Knockout" is a song by Lil Wayne from his album Rebirth. It features Nicki Minaj rapping near the end of the song and singing the chorus. The song debuted at forty-four on the US Billboard Hot 100 due to strong digital sales with the album's release. This song also marks Minaj's first appearance on the chart. As of October 2010 the song sold 519,000 digital copies according to Nielsen SoundScan. The song has received reappraisal in 2021 via TikTok and the emergence of the microgenre hyperpop.