"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 revolves around Lil Wayne's personal relationships with a diverse group of women. This song, with many Blink 182-esque qualities was written "ironically," according to Wayne. As of October 2010 the song sold 519,000 digital copies according to Nielsen SoundScan.